Halicampus zavorensis and H. marquesensis, new species of pipefishes (Syngnathidae) from Mozambique and the Marquesas Islands
- Dawson, C E (Charles E.), 1922-, J.L.B. Smith Institute of Ichthyology
- Authors: Dawson, C E (Charles E.), 1922- , J.L.B. Smith Institute of Ichthyology
- Date: 1984-02
- Subjects: Pipefishes -- Mozambique -- Classification , Pipefishes -- French Polynesia -- Marquesas Islands -- Classification
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/70061 , vital:29611 , Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB)) Periodicals Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB))
- Description: Online version of original print edition of the Special Publication of the J.L.B. Smith Institute of Ichthyology; No. 34 , Two new species of syngnathine (tail-pouch) pipefishes sharing a continuous median dorsal snout ridge, a short snout (its length more than 2 in HL), presence of lateral spines or ridges on the snout, dermal flaps on the eye, 14 trunk rings and ca. 21-23 dorsal-fin rays are described and illustrated. Halicampus zavorensis is distinguished by a linear and distally spinulose dorsal snout ridge, two lateral spines on the snout and 36-37 tail rings. In H. marquesensis, the arcuate and partly denticulate dorsal snout ridge is paralleled distally by a bilateral pair of ridges which originate on the interorbital, there is a vestigial lateral ridge on the snout, and there are 39-40 tail rings. These pipefishes are compared to other species presently referred to the genus Halicampus Kaup.
- Full Text:
- Date Issued: 1984-02
- Authors: Dawson, C E (Charles E.), 1922- , J.L.B. Smith Institute of Ichthyology
- Date: 1984-02
- Subjects: Pipefishes -- Mozambique -- Classification , Pipefishes -- French Polynesia -- Marquesas Islands -- Classification
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/70061 , vital:29611 , Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB)) Periodicals Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB))
- Description: Online version of original print edition of the Special Publication of the J.L.B. Smith Institute of Ichthyology; No. 34 , Two new species of syngnathine (tail-pouch) pipefishes sharing a continuous median dorsal snout ridge, a short snout (its length more than 2 in HL), presence of lateral spines or ridges on the snout, dermal flaps on the eye, 14 trunk rings and ca. 21-23 dorsal-fin rays are described and illustrated. Halicampus zavorensis is distinguished by a linear and distally spinulose dorsal snout ridge, two lateral spines on the snout and 36-37 tail rings. In H. marquesensis, the arcuate and partly denticulate dorsal snout ridge is paralleled distally by a bilateral pair of ridges which originate on the interorbital, there is a vestigial lateral ridge on the snout, and there are 39-40 tail rings. These pipefishes are compared to other species presently referred to the genus Halicampus Kaup.
- Full Text:
- Date Issued: 1984-02
Review of the Indo-Pacific pipefish genus Doryrhamphus Kaup (Pisces: Syngnathidae) with descriptions of a new species and a new subspecies
- Dawson, C E (Charles E.), 1922-
- Authors: Dawson, C E (Charles E.), 1922-
- Date: 1981
- Subjects: Pipefishes -- Indo-Pacific Region -- Classification
- Language: English
- Type: Text
- Identifier: vital:14990 , http://hdl.handle.net/10962/d1018959 , Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 44
- Description: Dawson, C.E. 1981. Review of the Indo-Pacific Pipefish Genus Doryrhamphus Kaup (Pisces: Syngnathidae), with Descriptions of a New Species and a New Subspecies. Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology, No. 44, 27 pages, 17 figures. Doryrhamphus, a genus of trunk-pouch pipefishes commonly associated with rock or coral habitats, is diagnosed and a key is provided to the five species and five subspecies recognized. The genus Dentirostrum Herald and Randall is synonymized with Doryrhamphus, treated species and subspecies are diagnosed and illustrated, distribution (based on material examined) is delineated and comprehensive synonymies are provided. The genus includes two species groups which, (in subadults and adults) differ in having either one or two spines on principal ridges of the posterior predorsal rings. Species of the single-spine group are distinguished by differences in meristic values and preserved coloration, as well as by the presence of one or two ventrolateral projections on the snout of males, or the absence thereof. Species of the two-spine group are distinguished by differences in meristic values and preserved coloration, as well as by the presence of either one or two spines on principal ridges of tail rings. The single-spine group includes the type-species, D. excisus (three subspecies), with one ventrolateral projection on snout in males, A japonicus with no projection on snout, and D. bicarinatus n. sp. with two projections on snout. Doryrhamphus e. excisus (a senior synonym of D. melanopleura), with modally 17-18 trunk rings ranges from eastern Africa and Persian Gulf to the west coast of the Americas. This pipefish, the most widely distributed syngnathid, exhibits some west-east clinal increase in counts of total rings and dorsal-fin rays. Doryrhamphus e. abbreviatus n. ssp. is a Red Sea endemic characterized by modally 16 trunk rings as well as by 26-28 total rings and 18-20 dorsal-fin rays. D. e. paulus (Revillagegido Is., Mexico) shares the modal count of 16 trunk rings, but has 30-32 total rings and 23-27 dorsal-fin rays. D. japonicus (19-20 trunk rings) is known only from the main islands of Japan, whereas D. bicarinatus (16 trunk rings) is known from Indian Ocean coasts of South Africa and Mozambique. The two-spine group includes D. negrosensis (2 subspecies) with 2 spines on ridges of tail rings in subadults and adults and A janssi (one spine on ridges of tail rings. A n. negrosensis (modally 15 trunk and 29 total rings) is known from Borneo to the Ryukyu Is. and southeastward to the New Hebrides, excluding Australia. D. n. malus (modally, 16 trunk and 31 total rings) is an Australian Great Barrier Reef endemic. D. janssi, with more tail rings than D. negrosensis (21-23 versus 13-16), is known from the eastern Indian Ocean (off NW Australia) and from the Gulf of Thailand and Philippines southeastward to New Guinea and NE Australia in the western Pacific Ocean. Planktonic young of A excisus and early juveniles of D. negrosensis are illustrated and briefly described. , Rhodes University Libraries (Digitisation)
- Full Text:
- Date Issued: 1981
- Authors: Dawson, C E (Charles E.), 1922-
- Date: 1981
- Subjects: Pipefishes -- Indo-Pacific Region -- Classification
- Language: English
- Type: Text
- Identifier: vital:14990 , http://hdl.handle.net/10962/d1018959 , Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 44
- Description: Dawson, C.E. 1981. Review of the Indo-Pacific Pipefish Genus Doryrhamphus Kaup (Pisces: Syngnathidae), with Descriptions of a New Species and a New Subspecies. Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology, No. 44, 27 pages, 17 figures. Doryrhamphus, a genus of trunk-pouch pipefishes commonly associated with rock or coral habitats, is diagnosed and a key is provided to the five species and five subspecies recognized. The genus Dentirostrum Herald and Randall is synonymized with Doryrhamphus, treated species and subspecies are diagnosed and illustrated, distribution (based on material examined) is delineated and comprehensive synonymies are provided. The genus includes two species groups which, (in subadults and adults) differ in having either one or two spines on principal ridges of the posterior predorsal rings. Species of the single-spine group are distinguished by differences in meristic values and preserved coloration, as well as by the presence of one or two ventrolateral projections on the snout of males, or the absence thereof. Species of the two-spine group are distinguished by differences in meristic values and preserved coloration, as well as by the presence of either one or two spines on principal ridges of tail rings. The single-spine group includes the type-species, D. excisus (three subspecies), with one ventrolateral projection on snout in males, A japonicus with no projection on snout, and D. bicarinatus n. sp. with two projections on snout. Doryrhamphus e. excisus (a senior synonym of D. melanopleura), with modally 17-18 trunk rings ranges from eastern Africa and Persian Gulf to the west coast of the Americas. This pipefish, the most widely distributed syngnathid, exhibits some west-east clinal increase in counts of total rings and dorsal-fin rays. Doryrhamphus e. abbreviatus n. ssp. is a Red Sea endemic characterized by modally 16 trunk rings as well as by 26-28 total rings and 18-20 dorsal-fin rays. D. e. paulus (Revillagegido Is., Mexico) shares the modal count of 16 trunk rings, but has 30-32 total rings and 23-27 dorsal-fin rays. D. japonicus (19-20 trunk rings) is known only from the main islands of Japan, whereas D. bicarinatus (16 trunk rings) is known from Indian Ocean coasts of South Africa and Mozambique. The two-spine group includes D. negrosensis (2 subspecies) with 2 spines on ridges of tail rings in subadults and adults and A janssi (one spine on ridges of tail rings. A n. negrosensis (modally 15 trunk and 29 total rings) is known from Borneo to the Ryukyu Is. and southeastward to the New Hebrides, excluding Australia. D. n. malus (modally, 16 trunk and 31 total rings) is an Australian Great Barrier Reef endemic. D. janssi, with more tail rings than D. negrosensis (21-23 versus 13-16), is known from the eastern Indian Ocean (off NW Australia) and from the Gulf of Thailand and Philippines southeastward to New Guinea and NE Australia in the western Pacific Ocean. Planktonic young of A excisus and early juveniles of D. negrosensis are illustrated and briefly described. , Rhodes University Libraries (Digitisation)
- Full Text:
- Date Issued: 1981
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