A review of the species of the genus Neobythites (Pisces: Ophidiidae) from the Western Indian Ocean, with a description of seven new species
- Authors: Nielsen, Jørgen G
- Date: 1995
- Language: English
- Type: Text
- Identifier: vital:15024 , http://hdl.handle.net/10962/d1019887 , ISBN 0-86810-281-4 , Ichthyological Bulletin J.L.B. Smith Institute of Ichthyology; No. 62
- Description: Species of the ophidiid genus Neobythites from the western Indian Ocean are revised based on 225 specimens. The majority of specimens came from the 17th cruise (1988-89) of the Soviet R/V VITYAZ. Twelve species are recognized: N. analis Barnard, 1927 (southern Africa; lectotype designed), N. crosnieri sp.n. (Madagascar), N. kenyaensis sp.n, (east coast of Africa), N. malhaensis sp.n. (Saya de Malha Bank), N. meteori sp.n. (Socotra Id.), N. multistriatus Nielsen and Quero, 1991 (Reunion and Rodrigues Islands), N. natalensis sp.n. (South Africa and Madagascar), N. somaliaensis sp.n. (Somalia), N. steatiticus Alcock, 1893 (northern Indian Ocean), N. stefanovi Nielsen and Uiblein, 1993 (Red Sea to Gulf of Oman), N. trifilis Kotthaus, 1979 (Socotra Id.), N. vityazi sp.n. (Madagascar). All 12 species are illustrated, and a key is included. This paper is the first part of a revision of the genus Neobythites. A second and third part will treat the species from the East Indian/Pacific Oceans and the Atlantic Ocean. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1995
Fish community structure in three temporarily open/closed estuaries on the Natal coast
- Authors: Harrison, Trevor D , Whitfield, Alan K
- Date: 1995
- Language: English
- Type: Text
- Identifier: vital:15026 , http://hdl.handle.net/10962/d1019890 , ISSN 0073-4381 , Ichthyological Bulletin J.L.B. Smith Institute of Ichthyology; No. 64
- Description: The fishes of three small Natal estuaries, the Mhlanga, Damba and Zotsha were sampled over a period of two years. A total of 68 fish taxa representing 24 families, 39 genera and 55 species were captured during this study. Forty seven fish taxa were recorded in the Mhlanga estuary of which Gilchristella aestuaria, Oreochromis mossambicus, Valamugil cunnesius, Valamugil sp. and juvenile mugilids numerically dominated. In terms of biomass, O. mossambicus, V. cunnesius, Liza alata, Myxus capensis and Mugil cephalus dominated the ichthyofauna of the Mhlanga system. In the Damba estuary, 24 fish taxa were recorded, the most abundant being Glossogobius callidus,M. capensis and 0. mossambicus. M. capensis, M. cephalus, O. mossambicus and G. callidus dominated the fish biomass captured in the Damba system. A total of 56 fish taxa were recorded in the Zotsha estuary during this study, with the ichthyofauna numerically dominated by juvenile mugilids, G. aestuaria, O. mossambicus, Rhabdosargus holubi, Terapon jarbua, Ambassis productus and G. callidus. The species which dominated the fish biomass in the Zotsha system were 0. mossambicus L. alata, Valamugil robustus, V. buchanani, M. capensis, M. cephalus and V. cunnesius. Classifying the species according to whether they were resident estuarine, freshwater, estuarine-dependent marine or marine species revealed that the first three groups were all well represented in the systems. Oreochromis mossambicus was the dominant freshwater species in all three estuaries. Gilchristella aestuaria and Glossogobius callidus were the principal estuarine species in the Mhlanga and the Damba respectively, with G. aestuaria, A. productus and G. callidus being the dominant estuarine species captured in the Zotsha. The principal estuarine-dependent marine fishes captured in the Mhlanga were V. cunnesius, Valamugil sp., juvenile mugilids, M. capensis, M. cephalus and L. alata. In the Damba, M. capensis and M. cephalus were the dominant estuarine-dependent marine species and in the Zotsha juvenile mugilids, R. holubi, T. jarbua, M. capensis, V. cunnesius, V. robustus, M. cephalus, L. alata and V. buchanani were the principal estuarine-dependent marine species. The results of this study indicate that the estuaries are dominated at different periods by different assemblages of fishes. This is linked to the spawning and migration patterns of the various species as well as the hydrological regime of each estuary. During the winter these systems are normally closed with relatively deep waters and high food resource and habitat availability. Freshwater and estuarine species mainly inhabit the upper reaches of the systems while estuarine-dependent marine species, which dominate the fish community, mainly occupy the middle and lower reaches. When these estuaries open with the onset of the spring/summer rains, adult and sub-adult estuarine-dependent marine species emigrate to the marine environment and juveniles begin recruiting into the systems. Spring is also the peak breeding period of resident estuarine and freshwater species, resulting in an increase in the contribution of these fishes to the overall ichthyofauna during this period. When closed estuaries open the water level falls and this results in the fishes concentrating in the lower reaches of the system where moderate water depths are present, thus further contributing to an increase in the proportion of freshwater and estuarine species in this region. The breaching of closed estuaries also results in a reduction in food resources and habitat availability. Competition and possible increased vulnerability to avian predation (due to the shallow nature of the systems), may contribute to a decrease in the proportion of estuarine and freshwater species in summer. The prolonged recruitment of Of-juveniles of estuarine-dependent marine species results in an increase in the proportion of these fishes present in the estuaries during summer. In autumn, the systems normally close, water levels rise and available food resources and habitat increase. This allows the redistribution of freshwater and estuarine species upstream, leaving estuarine-dependent marine species to dominate the middle and lower reaches. Although temporarily open/closed estuaries along the Natal coast may not be as diverse as permanently open estuaries in terms of their ichthyofauna, their importance must not be underestimated, since by providing a series of sheltered habitats along the coast they may contribute significantly to the viability of estuarine-dependent marine fish stocks. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1995
Fishes of the Tristan da Cunha Group and Gough Island, South Atlantic Ocean
- Authors: Andrew, T G , Hecht, Thomas , Heemstra, Phillip C , Lutjeharms, J R E
- Date: 1995
- Language: English
- Type: Text
- Identifier: vital:15025 , http://hdl.handle.net/10962/d1019889 , ISSN 0073-4381 , Ichthyological Bulletin J.L.B. Smith Institute of Ichthyology; No. 63
- Description: Recent collections of fishes from the South Atlantic islands of the Tristan da Cunha Group (Tristan, Inaccessible and Nightingale) and Gough Island have produced 25 new records. Fifty one species are known to occur in the near-shore waters of the islands (46 of these are documented by specimens and another 5 species are probable). A diagnosis, synonymy and in most cases, an illustration, are provided for each species. For certain species, brief notes on biology, relative abundance and seasonal distribution are included. The neritic ichthyofauna of the Subtropical Convergence (STC) region is characterized, and the importance of this frontal zone as a barrier to dispersal of species in the Southern Ocean is evaluated. Analysis of the zoogeographic affinities of the Tristan/Gough fish fauna resulted in a redefinition of the West Wind Drift Islands Province (WWDI), comprising the Tristan Group and Gough in the South Atlantic and St. Paul and Amsterdam Islands in the southern Indian Ocean. Verna Seamount (west of Cape Town) and Walters Shoal (south of Madagascar) are excluded from the WWDI Province, as the affinities of their poorly-known fish faunas appear to be more with South Africa and the tropical Indian Ocean respectively. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1995
Review of the grenadiers (Teleostei: Gadiformes) of Southern Africa, with descriptions of four new species
- Authors: Iwamoto, Tomio , Anderson, M Eric
- Date: 1994
- Language: English
- Type: Text
- Identifier: vital:15023 , http://hdl.handle.net/10962/d1019883 , ISBN 0-86810-276-8 , Ichthyological Bulletin J.L.B. Smith Institute of Ichthyology; No. 61
- Description: Grenadier fishes of the families Bathygadidae and Macrouridae from southern Africa are reviewed since publication of the book Smiths’ Sea Fishes (1986). The bathygadid and macrourid fauna is increased to 46 species in 20 genera with the addition of the following new species and new records for southern Africa: Bathygadus cottoides, Caelorinchus kaiyomaru, Caelorinchus karrerrae, Caelorinchus simorhynchus sp.n, (misidentified in southern Africa as Caelorinchus fasciatus), Caelorinchus trunovi sp.n, (misidentified in southern Africa as Caelorinchus flabellispinis), Cetonurus globiceps, Co- ryphaenoides carapinus, Coryphaenoides grahami, Coryphaenoides mcmillani, Haplomacrurus nudirostris, Hymenocephalus heterolepis (uncertain identification), Malacocephalus occidentalis, Nezumia spinosa, Nezumia umbracincta sp.n., Odon- tomacrurus murrayi, Sphagemacrurus richardi, Ventrifossa mystax sp.n, (previously identified as V. sp. aff. divergens), and an indeterminate species of Ventrifossa. Name changes include: formerly Nezumia hebetata in southern Africa changed to Kumba sp.; formerly Nezumia bubonis and N. leonis now included in Kuronezumia; formerly Ventrifossa ori now Lucigadus ori; Paracetonurus sp. now Pseudonezumia sp. The species of Macrourus from southern Africa is identified as M. carinatus (Gunther, 1878). Range extensions of previously known grenadiers include Caelorinchus acanthiger far into the western Indian Ocean and Australia, C. denticulatus to Kenya, Nezumia milleri to southern Namibia, N. propinqua to Natal, Trachonurus villosus to off False Bay, western Cape Province, Ventrifossa mystax, sp. n. to the Cape west coast and V. nasuta to off Port Elizabeth. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1994
Systematics and Osteology of the Zoarcidae (Teleostei: Perciformes)
- Authors: Anderson, M Eric
- Date: 1994
- Language: English
- Type: Text
- Identifier: vital:15033 , http://hdl.handle.net/10962/d1019910 , ISSN 0073-4381 , Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 60
- Description: The eelpouts, Zoarcidae, are a group of perciform fishes, most species of which inhabit continental shelves and slopes of boreal seas. There are about 220 valid species of eelpouts; most are rare, deep-sea forms and the systematics and biology of the group has been neglected by most workers. This work is a contribution to the improvement of that state. The anatomy of the Zoarcidae was studied in an attempt to reconstruct phylogeny and establish generic limits. From an analysis of a matrix of 76 characters, the 45 genera recognised here form 4 subfamilies. The Lycozoarcinae contains only the primitive Lycozoarces hubbsi. The others, Zoarcinae, Gymnelinae, and Lycodinae, for the most part, include genera recognised in previous classifications (Gill, 1862, 1864; Andriashev, 1939). The more primitive zoarcids are characterised by having 4-6 suborbital bones arranged in a circular pattern close to the orbit, and “complete” cephalic lateralis pore patterns, except some of the few deep-sea forms. The more derived zoarcids are characterized by having 6-11 suborbital bones arranged in an angled, or “L”-shaped" pattern away from the orbit (except a few which have lost some bones) and the loss of the interorbital pores (except for some reversals in Lycenchelys and Lycodapus). Zoarcids are considered to have originated in the North Pacific Ocean, perhaps as early as the Eocene, when a pre-percoid radiation occurred. The suborder Zoarcoidei (today some 8-9 families) spread across the Pacific rim. Among Zoarcidae, a pre-Miocene radiation took place along the western coasts of the Americas, with areas of endemism forming in the Magellan Province of South America and Antarctica. Subsequent spreading back into northern waters occurred in Melanostigma and Pachycara. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1994
A review of the gobioid fishes of the Maldives
- Authors: Randall, John E, 1924- , Goren, Menachem
- Date: 1993-04
- Subjects: Perciformes , Perciformes -- Maldives , Gobioidae -- Maldives , Eleotrididae -- Malidves , Microdesmidae -- Maldives , Xenisthmidae -- Maldives
- Language: English
- Type: Text
- Identifier: vital:15034 , http://hdl.handle.net/10962/d1019911 , ISSN 0073-4381 , ISBN 0-86810-251-2 , Margaret Smith Library, SAIAB, Grahamstown
- Description: The following 84 gobioid fishes are reported from the Maldive Islands (those preceded by asterisk represent new records). GOBIIDAE: Amblyeleotris aurora (Polunin & Lubbock), *A. diagonalis Polunin and Lubbock, *A. periophthalma (Bleeker), *A. steinitzi (Klausewitz), A. wheeleri (Polunin & Lubbock), * Amblygobius hectori (Smith), A. semicinctus (Bennett), * Asterropteryx semipunctatus Ruppell, *A. spinosus (Goren), *Bathygobius calitus (Bennett), B. cocosensis (Bleeker), *B. cyclopterus (Valenciennes), * Cabillus tongarevae (Fowler), * Callogobius centrolepis Weber, *C. sclateri (Steindachner), *C. sp., Cryptocentrus fasciatus (Playfair & Gunther), *Ctenogobiops crocineus Smith, C. feroculus Lubbock & Polunin, * Eviota albolineata Jewett & Lachner, *E. guttata Lachner & Karnella, *E. nebulosa Smith, *E. nigripinna Lachner & Karnella, *E. prasina (Kluzinger), *E. sebreei Jordan & Seale, *E. zebrina Lachner & Karnella, *E. sp., * Flabelligobius latruncularius (Klausewitz), * Fusigobius duospilus Hoese & Reader, *F. neophytus (Gunther), *F. sp. 1 (sp. A of Winterpottom & Emery, 1986), *F. sp. 2 (sp. B of Winterbottom & Emery, 1986), *Gnatholepis anjerensis (Bleeker), *G. scapulostigma Herre, *Gobiodon citrinus (Ruppell), *G. sp. (Chagos specimens identified as G. rivulatus by Winterbottom & Emery, 1986), *Hetereleotris zanzibarensis (Smith), *Istigobius decoratus (Herre), *Macrodontogobius wilburi Herre, Oplopomus caninoides (Bleeker) (reported from Maldives by Regan, 1908), O. Oplopomus (Valenciennes) (reported from Maldives by Regan, 1908, as Hoplopomus acanthistius), *Opua maculipinnis, n. sp. (Opua E.K. Jordan is regarded as a senior synonym of Oplopomops Smith; the new species is characterized as follows: no dorsal spines filamentous, the third longest; 10 soft rays in second dorsal and anal fins; 27 scales in longitudinal series on body, 9 prodorsal scales; body depth 4.9 in SL, a midlateral row of five dusky blotches on body each containing a pair of dark brown spots, a large dusky spot under eye, and a large black spot posteriorly in first dorsal fin), *Palutrus reticularis Smith,* Papillogobius reichei (Bleeker), *Paragobiodon lacuniculus (Kendall and Goldsborough), *P. modestus (Regan), *Pleurosicya michelli Fourmanoir, *Priolepis cinctus (Regan), *P. nocturnus (Smith), *P. semidoliatus (Valenciennes), P. sp., Stonogobiops dracula Lubbock & Polunin, * Sueviota lachneri Winterbottom & Hoese, *Trimma emeryi Winterbottom, *T. flammeum (Smith), *T. naudei Smith, *T. striata (Herre), *T. taylori Lobel, *T. tevegae Cohen & Davis, *T sp. 1, *T. sp. 2, *T. sp. 3, *T. sp. 4 (these four species of trimma to be described by R. Winterbottom), *Trimmatom nanus Winterbottom & Emery, Valenciennea helsdingenii (Bleeker), V. puellaris (Tomiyama), V. sexguttata (Valenciennes), V. strigata (Broussonet), V. sp. (to be named by Hoese and Larson, in press), Vanderhorstia ambanoro (Fourmanoir),* V. ornatissima Smith, V. prealta Lachner & McKinney. ELEOTRIDIDAE: Eleotris melanosoma Bleeker. MICRODESMIDAE: * Gunnellichthys curiosus Dawson, *G. monostigma Smith, G. viridescens Dawson, *Ne- mateleotris decora Randall & Allen, N. magnifica Fowler, Ptereleotris evides (Jordan & Hubbs), P. heteroptera Bleeker, *P. microlepis (Bleeker), *P. zebra (Fowler), *P. sp. (probably either P. hanae or P. arabica; specimen needed). XENISTHMIDAE: Xenisthmus polyzonatus (Klunzinger). , Digitised by Rhodes University Library on behalf of SAIAB
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- Date Issued: 1993-04
Annotated checklist of the epipelagic and shore fishes of the Maldive Islands
- Authors: Randall, John E, 1924- , Anderson, R Charles
- Date: 1993
- Language: English
- Type: Text
- Identifier: vital:15035 , http://hdl.handle.net/10962/d1019913 , ISSN 0073-4381 , ISBN 0-86810-261-X , Ichthyological Bulletin of the J.L.B. Smith Insitute of Ichthyology; No. 59
- Description: A historical resume of fish collecting in the Maldive Islands is presented, beginning with the collection o f J. Stanley Gardiner in 1899-1900. Specimens of Maldives fishes have been examined at the Marine Research Section of the Ministry of Fisheries and Agriculture, Republic of Maldives and the five museums which house most of the fishes that have been collected in the islands: the Natural History Museum, London; Bernice P. Bishop Museum, Honolulu; California Academy of Sciences, San Francisco; Field Museum of Natural History, Chicago; and the Senckenberg Museum, Frankfurt. A total of 899 species of epipelagic and shore fishes are recorded from the Maldives; 201 of these are new records for the islands. Thirty-two of the 899 are recorded by generic name only. Some of these could not be identified to species due to poor condition or to their being juveniles, but most appear to be undescribed. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1993
Neotype description for the African catfish Clarias Gariepinus (Burchell, 1822) (Pisces: Siluroidei: Clariidae)
- Authors: Skelton, Paul H (Paul Harvey) , Teugels, Guy G
- Date: 1992
- Subjects: Catfishes -- Africa , Clariidae -- Africa
- Language: English
- Type: Text
- Identifier: vital:14995 , http://hdl.handle.net/10962/d1019675 , ISBN 0-86810-231-8 , Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 56
- Description: A neotype for Clarias gariepinus (Burchell, 1822) is designated and described. Data from 41 specimens from the type locality are also presented. The geographical distribution of the species is discussed. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1992
Recruitment of juvenile marine fishes into permanently open and seasonally open estuarine systems on the southern coast of South Africa
- Authors: Whitfield, Alan K , Kok, H M
- Date: 1992
- Subjects: Marine fishes -- Migration -- South Africa , Estuarine fisheries
- Language: English
- Type: Text
- Identifier: vital:15020 , http://hdl.handle.net/10962/d1019801 , ISBN 0-86810-232-6 , Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 57
- Description: The recruitment of juvenile marine fishes into the Knysna and Swartvlei estuaries was monitored over 30 months using seine, scoop and cast nets. The relative abundance, seasonality and growth of the dominant species are presented, and includes the Cape stumpnose Rhabdosargus holubi, white steenbras Lithognathus lithognathus, blacktail Diplodus sargus, strepie Sarpa salpa, Cape moony Monodactylus falciformis, southern mullet Liza richardsonii, groovy mullet Liza dumerilii, striped mullet Liza tricuspidens, flathead mullet Mugil cephalus, freshwater mullet Myxus capensis and leervis Lichia amia. Information on a further 12 species is also provided. Recruitment of most fish species into the Swartvlei and Knysna estuaries reaches a peak during summer, which coincides with maximum food resource availability and corresponds to the time when systems along this section of the coast are often open to the sea. Artificial winter breaching of the Swartvlei mouth has occurred in the past, and has generally led to the premature closure of the system and loss of the ‘head’ of water needed for the summer opening. This type of mouth manipulation leads to reduced availability of estuarine nursery areas for marine fishes along the southern Cape coast. Comparisons between the recruitment of juvenile fishes into the Knysna and Swartvlei estuaries indicate that higher densities of most species were recorded in the former system. This is attributed mainly to the fact that the Knysna mouth is deep, permanently open, and has a strong marine influence when compared to the shallow, narrow and seasonally closed Swartvlei mouth. However, in a regional context both Knysna and Swartvlei are large, unpolluted systems, which serve as important nursery areas for many species of fish. On this basis alone, these contrasting estuarine systems should be allocated the highest possible conservation status. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1992
Studies on the Zoarcidae (Teleostei: Perciformes) of the Southern Hemisphere IV. New records and a new species from the Magellan Province of South America
- Authors: Anderson, M Eric , Gosztonyi, Atila E
- Date: 1991
- Language: English
- Type: Text
- Identifier: vital:14999 , http://hdl.handle.net/10962/d1019708 , ISSN 0073-4381 , Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 55
- Description: New data on the eelpouts of the Magellan Province of South America are presented to include accounts of 10 of the 25 species presently known from the area. Aiakas zini, a second species for Aiakas Gosztonyi, 1977, is described as new. On the basis of material collected since the authors last published on the eelpouts of this region (1977 and 1988), enhanced descriptions are provided for Aiakas kreffti, Crossostomus chilensis, Lycenchelys bachmanni, Notolycodes schmidti, Oidiphoms brevis, Ophthalmolycus macrops and Pogonolycus marinae. Placed in synonymy are Crossostomus sobrali Lloris and Rucabado, 1987 with C. chilensis Regan, 1913, Iluocoetes facali Lloris and Rucabado, 1987 with I.fim- briatus Jenyns, 1842 and Haushia Lloris, 1988 with Pogonolycus Norman, 1937. Shorter accounts are provided for data from new specimens of Lycodonus malvinensis and Piedrabuenia ringueleti. A key to all of the species of Zoarcidae from the Magellan Province is included. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1991
New species and new records of rare Antarctic Paraliparis fishes (Scorpaeniformes: Liparididae)
- Authors: Stein, David, L , Tompkins, Linda, S
- Date: 1989
- Subjects: Cyclopteridae -- Antarctica , Paraliparis -- Antarctica
- Language: English
- Type: Text
- Identifier: vital:14997 , http://hdl.handle.net/10962/d1019703 , Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 53
- Description: The liparidid fishes collected in the Southern Ocean by the U.S. Navy vessel “Eltanin” were reviewed in an unpublished M.Sc. thesis by the junior author (Tompkins, 1977). These collections include several hundred specimens, of which 134, representing at least 10 species of the genus Paraliparis, have been re-examined by the senior author and are the subject of the present paper. Descriptions are given for five new species of Antarctic Paraliparis: P. anarthractae, P. andriashevi, P. eltanini, P. incognita, and P. fuscolingua. Four of the new species are illustrated; the fifth (P. incognita) was illustrated by Andriashev (1986: Fig. 59) as P. terraenovae Regan, 1916. P. edentatus Andriashev, 1986 is synonymized with P. terraenovae, and additional data on this species are presented. A probable new species of Paraliparis is diagnosed but not named due to the poor condition of the single specimen. New records of five other rare species (P. antarcticus Regan P. devriesi Andriashev, P. meganchus Andriashev, P. stehmanni Andriashev, and P. tetrapteryx Andriashev) are discussed. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1989
The taxonomic status and phylogenetic relationship of Pseudocrenilabrus Fowler (Teleostei, Cichilidae)
- Authors: Greenwood, Peter Humphrey
- Date: 1989
- Language: English
- Type: Text
- Identifier: vital:15004 , http://hdl.handle.net/10962/d1019722 , ISSN 0073-4381 , Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 54
- Description: Various and disparate opinions have been expressed with regard to the phylogenetic affinities of Pseudocrenilabrus, a seemingly generalized and primitive haplochromine genus. These views are reconsidered and rejected. Instead, it is suggested that Pseudocrenilabrus is a derived and paedomorphic taxon evolved from a generalized haplochromine ancestor such as would be represented amongst extant African cichlids by a species of the genus Astatotilapia; for the moment it is not possible to identify a sister group more precisely. The suggestion that Pseudocrenilabrus is a paedomorphic taxon is based on certain Osteological and dental features, particularly the reductional trend manifest in the infraorbital bones of its three constituent species. A new diagnosis and synonomy are provided for the genus, together with notes on its anatomy, osteology and meristic features. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1989
Fishes of the family Mullidae in the Red Sea, with a key to the species in the Red Sea and the Eastern Mediterranean
- Authors: Ben-Tuvia, Adam , Kissil, Geerge Wm
- Date: 1988
- Subjects: Mullidae -- Red Sea , Mullidae -- Mediterranean Sea
- Language: English
- Type: Text
- Identifier: vital:15011 , http://hdl.handle.net/10962/d1019744 , ISSN 0073-4381 , ISBN 0-86810-175-3 , Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 52
- Description: Thirteen species of Mullidae (goatfishes or red mullets) occur in the Red Sea: Mulloides flavolineatus, M. vanicolensis, Parupeneus cyclostomus, P. forsskali, P. heptacanthus, P. macronemus, P. rubescens, Upeneus asymmetricus, U. moluccensis, U. subvittatus (previously known only from the western Pacific), 0. sulphureus, U. tragula and U. vittatus. Descriptions, biological observations and black and white photographs are given for each of these 13 species. Keys are provided to the genera of Mullidae, to the species occurring in the Red Sea, and to the two Mediterranean species of Mullus that have been reported from the Suez Canal. The distinction between the genera Pseudupeneus and Parupeneus is discussed. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1988
Dinopercidae, a new family for the Percoid marine fish genera Dinoperca Boulenger and Centrarchops Fowler (Pisces: Perciformes)
- Authors: Heemstra, Phillip C , Hecht, Thomas
- Date: 1986
- Subjects: Perciformes -- Classification
- Language: English
- Type: Text
- Identifier: vital:15010 , http://hdl.handle.net/10962/d1019743 , ISSN 0073-4381 , Ichthyological Bulletin J.L.B. Smith Institute of Ichthyology; No. 51
- Description: The Genus Dinoperca was erected by Boulenger (1895) for the Northern Indian Ocean species Hapalogenys petersi Day and assigned to the Family Serranidae. Boulenger (1903) described a second species, D. queketti, from South Africa. Most subsequent authors have accepted the placement of Dinoperca in the Serranidae, but Johnson (1983) removed it from the Serranidae to the taxonomic limbo of “Incertae sedis’’. Centrarchops Fowler (1923), with a single West African species, was originally assigned to the Serranidae and has been treated by subsequent authors in the Serranidae. The osteology, myology and the otolith (sagitta) of D. petersi reveal no characters that would relate Dinoperca to any particular family of percoids. Furthermore, the presence or absence of certain characters preclude Dinoperca and Centrarchops from the Family Serranidae, and the superfamilies Haemuloidea, Lutjanoidea and Sparoidea. Two features appear to be uniquely derived characters (synapomorphies) justifying a separate family for Dinoperca and Centrarchops: (1) Frontal bones bearing a high median crest that articulates posteriorly with the supraoccipital crest and is cleft dorsally by a narrow median sulcus extending ventrally to the roof of the brain cavity. (2) Large swim-bladder with three pairs of large intrinsic muscles. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1986
A review of the squirrelfishes of the subfamily Holocentrinae from the Western Indian Ocean and Red Sea
- Authors: Randall, John E, 1924- , Heemstra, Phillip C
- Date: 1985
- Subjects: Squirrelfishes -- Indian Ocean , Squirrelfishes -- Red Sea
- Language: English
- Type: Text
- Identifier: vital:15019 , http://hdl.handle.net/10962/d1019798 , ISBN 0-86810-116-8 , Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 49
- Description: Two genera of Squirrelfishes of the subfamily Holocentrinae are found in the Indo-Pacific region: Neoniphon (Flammeo of recent authors) and Sargocentron (Adioryx of most recent authors). A total of 19 species of these two genera occur in the Indian Ocean west of the southern tip of India: Neoniphon argenteus, N. aurolineatus (Flammeo scythrops Jordan & Evermann and Holocentrus anjouanae Fourmanoir are junior synonyms), N. opercularis, N. aurolineatus, Sargocentron caudimaculatum, S. diadema, S. ittodai (first records for the Red Sea and western Indian Ocean), S. macrosquamis (recently described from the Red Sea and Amirante Group, Seychelles, the range here extended to Kenya, Mozambique, Mauritius, and the Chagos Archipelago), S. melanospilos (usually misidentified as cornutum which is known only from the Indo-Malayan region), S. microstoma (known in the region only from Maldive Islands and Astove Island), S. praslin (usually not distinguished by authors from S. rubrum; Holocentrum marginatum Cuvier is a synonym), S. punctatissimum (has priority over lacteoguttatum due to selection by first revisor, Bleeker, 1873), S. rubrum, S. seychellense (an insular western Indian Ocean species), S. spiniferum (Holocentrum melanotopte- rus Bleeker is a junior synonym), S. tiere (Holocentrum elongatum Steindachner is a junior synonym), S. tiereoides (a new western Indian Ocean record), S. violaceum, and a new species, S. inaequalis (closely allied to macrosquamis Go- lani, 1984, differing in variable Spination of preopercle, modally one fewer pectoral ray, fewer average number of lateral-line scales and a more elongate body). S. inaequalis is described from a total of 7 specimens from the Chagos Archipelago, Seychelles and Comoro Islands. S. melanospilos is recorded for the first time from the Red Sea where it appears to be subspecifically distinct from populations elsewhere in the Indo-Pacific region (no subspecific name proposed). Holocentrum macropus Gunther, allegedly collected at Mauritius, is a misidentification of the Atlantic Holocentrus ascensionis (Osbeck). A lectotype is selected for S. microstoma. Neotypes are designated for S. praslin and S. rubrum. Colour photographs of fresh specimens of all of the species except S. macrosquamis are presented. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1985
The fishes of the Okavango drainage system in Angola, South West Africa and Botswana: taxonomy and distribution
- Authors: Skelton, Paul H (Paul Harvey) , Bruton, M N , Merron, G S , Van der Waal, C W
- Date: 1985
- Language: English
- Type: Text
- Identifier: vital:15009 , http://hdl.handle.net/10962/d1019742 , ISSN 0073-4381 , Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 50
- Description: The publication of a new phase of research on the fishes of the Okavango drainage starts with this account which gives the valid names and broad distribution patterns of all species known from the system. Eighty species and subspecies are recognised, of which at least two (Parakneria fortuita Penrith; Serranochromis gracilis Greenwood) are endemic. Notes on early collections, synonymy, taxonomic status and distribution are given. New synonyms are recognized under Aplocheilichthys hutereaui (A. schalleri), Aplocheilichthys johnstoni (Haplochilus carlislei) and Ctenopoma multispinis (Ctenopoma machadoi) respectively. Recently published taxonomic changes are incorporated including two genera (Mesobola and Afromastacembelus), a species Serranochromis (Sargochromis) gracilis and the re-allocated Amphilius uranoscopus. The Zambezian Hemichromis species is re-identified as H. elongatus. A number of unresolved taxonomic problems are pointed out and certain dubious records are excluded from the checklist. The Okavango has a diverse fish fauna with tropical affinities. Many fish species are poorly studied. Man-induced threats to the continued natural functioning of this complex and dynamic system, especially large-scale water abstraction, overgrazing, deforestation and biocide spraying to eliminate tsetse fly, make it imperative that studies on the nature and role of the fishes are continued. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1985
A taxonomic study of the fish genus Petrotilapia (Pisces: Cichlidae) from Lake Malawi
- Authors: Marsh, A C
- Date: 1983
- Subjects: Petrotilapia -- Nyasa, Lake -- Classification , Fishes -- Nyasa, Lake -- Classification
- Language: English
- Type: Text
- Identifier: vital:15012 , http://hdl.handle.net/10962/d1019745 , Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 48
- Description: The type-species of the cichlid fish genus Petrotilapia Trewavas 1935, P. tridentiger, is redescribed and two new species, P. genalutea and P. nigra, are described. These three species occur sympatrically at Monkey Bay. Morphological differences between the three species are slight and of little diagnostic value. Live coloration is the most important taxonomic character and can be used reliably to identify adults of the three species. Field observations of live fishes are shown to be of paramount importance in taxonomic studies of the genus Petrotilapia. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1983
The parrotfishes of the subfamily Scarinae of the Western Indian Ocean with descriptions of three new species
- Authors: Randall, John E, 1924- , Bruce, Robin W
- Date: 1983
- Language: English
- Type: Text
- Identifier: vital:15013 , http://hdl.handle.net/10962/d1019747 , ISSN 0073-4381 , Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 47
- Description: The following 26 previously described species of Parrotfishes of the subfamily Scarinae are found in the Indian Ocean west of the southern tip of India (listed in the parentheses are the range, when restricted to some part of the western Indian Ocean, and junior synonyms not previously documented): Bolbometopon muricatum (Valenciennes) (Callyodon shimoniensis Smith is a synonym); Cetoscarus bicolor (Rüppell) (Scarus roseiceps Valenciennes is a synonym); Hipposcarus harid (Forsskal) [H. longiceps (Valenciennes) is a closely related allopatric species from the Pacific]; Scarus arabicus (Steindachner) (southern Arabian Peninsula and Gulf of Oman; only two specimens known); Scarus capistratoides Bleeker; Scarus caudofasciatus (Gunther) (Callyodon rubrofasciatus Smith is a synonym); Scarus collana Rüppell (a Red Sea endemic; Pseudoscarus ismailius Kossmann and Rauber and S. ghardaqensis Bebars are synonyms); Scarus cyanescens Valenciennes (Pseudoscarus chloromelas Playfair and Gunther is a synonym); Scarus enneacanthus Lacepede; Scarus falcipinnis (Playfair) (Callyodon pindae Smith and C. improvisus Smith are synonyms); Scarus ferrugineus Forsskal (Red Sea and Gulf of Aden; Pseudoscarus augustinus Kossmann and Rauber is a synonym); Scarus festivus Valenciennes (Callyodon lunula Snyder is a synonym); Scarus frenatus Lacepede; Scarus fuscopurpureus (Klunzinger) (Red Sea to Gulf of Oman; Pseudoscarus collana var. eques an Steindachner is a synonym); Scarus ghobban Forsskal (5. lacerta Valenciennes, Callyodon speigleri Smith, and S. fehlmanni Schultz are synonyms), Scarus gibbus Rüppell (Pseudoscarus frontalis Macleay is a synonym and a homonym); Scarus globiceps Valenciennes (S. lepidus Jenyns is a synonym); Scarus niger Forsskal (Pseudoscarus madagascariensis Steindachner is a synonym); Scarus prasiognathos Valenciennes (Maldive Islands appear to the westernmost record; S. chlorodon Jenyns, 5. Singaporensis Bleeker and S. janthochir Bleeker are synonyms); Scarus psittacus Forsskal (5. hertit [Ehrenberg] Valenciennes in C. & V., S. venosus Valenciennes, and S. taeniurus Valenciennes are synonyms); Scarus rubroviolaceus Bleeker (.Pseudoscarus rostratus Gunther is a synonym and a homonym); Scarus russelii Valenciennes (Xanothon fowled Smith is a synonym; initial phase often misidentified as S. venosus)’, Scarus scaber Valenciennes; Scarus sordidus Forsskal (S. spilurus Valenciennes is a synonym, and S. purpureus Valenciennes a synonym and homonym); Scarus tricolor Bleeker (Callyodon mus Smith and C. urbanus Smith are synonyms; initial phase often misidentified as S. Lepidus and the terminal phase as S. pectoralis or S. cyanognathos)’, Scarus viridifucatus (Smith) (Callyodon malindiensis Smith is a synonym), a close relative of S. spinus of the Pacific. Three new species of Scarus are described: S. atrilunula, from Kenya, is in the sordidus complex (initial phase was misidentified as rhoduropterus and the terminal male as capistratoides by Smith, 1956, 1959; S. genazonatus from the Red Sea and Gulf of Aden, also related to S. sordidus, differing chiefly in colour (the most distinctive colour marking of the terminal male is a broad stripe on lower cheek); and S. persicus from the Persian Gulf appears to be related to S. ferrugineus (initial phase light brownish-grey with two rows of small whitish spots on side, and median fin and pelvic fins edged in blue; terminal male similar to that of ferrugineus but with a blackish bar in middle of body). Colour photographs of fresh specimens of all 29 species are presented. Initial and terminal-phase adults are illustrated for most species, and juveniles for some. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1983
A review of the Labrid fishes of the genus Halichoeres of the Western Indian Ocean, with descriptions of six new species
- Authors: Randall, John E, 1924- , Smith, Margaret Mary
- Date: 1982
- Subjects: Halichoeres -- Indian Ocean
- Language: English
- Type: Text
- Identifier: vital:15000 , http://hdl.handle.net/10962/d1019709 , ISBN 0-86810-071-4 , Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 45
- Description: Fifteen species of the labrid fish genus Halichoeres occur in the western Indian Ocean (west of the southern tip of India): hortulanus (centiquadrus of many authors), scapularis, (ziczac is a synonym), marginatus (lamarii, ianthinus and virescens are synonyms), dussumieri (nigrescens of many authors; javanicus, dubius and dianthus are synonyms), pardaleocephalus (first western Indian Ocean record), hoevenii (vrolikii is a synonym), nebulosus (previously confused with margaritaceus which does not occur in the Indian Ocean), zeylonicus (bimaculatus of most authors is a synonym), lapillus, and six new species (stigmaticus, pelicieri, cosmetus, iridis, trispilus, and leucoxanthus). H. stigmaticus from the Persian Gulf is distinctive in having 28 lateral-line scales, 6 or 7 suborbital pores, and a U-shaped black mark on side above pectoral fin tips in males; H. pelicieri from Mauritius is a close relative of H. zeylonicus, differing chiefly in the colour of males (pelicieri with a broad blackish zone in dorsal fin and no large black spot on upper side); H. cosmetus, wide-ranging in the western Indian Ocean and a close relative of H. ornatissimus of the Pacific and Cocos-Keeling Islands, is alternately striped with bluish gray to green and salmon pink or yellow; H. iridis, also a species of the western Indian Ocean, has a dark brown body except for a red band along the back and an orange-yellow head with green bands; H. trispilus, known only from Mauritius and the Maldives, is pale pink with a diagonal row of three dark brown spots on upper caudal base and usually three black dots on back; H. leucoxanthus, known only from the Maldives, southwest Thailand and Java, is yellow dorsally and abruptly white on ventral half of body with a dark spot behind the eye, a black spot on upper caudal base, and three others in the dorsal fin. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1982
Serranid fishes of Tanzania and Kenya
- Authors: Morgans, J F C
- Date: 1982
- Subjects: Serranidae -- Tanzania , Serranidae -- Kenya , Marine fishes -- Tanzania , Marine fishes -- Kenya
- Language: English
- Type: Text
- Identifier: vital:15003 , http://hdl.handle.net/10962/d1019719 , ISSN 0073-4381 , Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 46
- Description: Forty-three species of serranid fishes from Tanzania and Kenya are described and distinguished. Notes on the food, gonad condition, internal parasites, changes with growth, underwater observations of live fish, habitat, and coloration of live or fresh specimens are given for most species. Synoptic synonymies are given for each species, but no attempt was made to resolve taxonomic problems that required examination of type-specimens. , Rhodes University Libraries (Digitisation)
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- Date Issued: 1982