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)
- Full Text:
- Date Issued: 1989
- 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)
- Full Text:
- Date Issued: 1989
APDUSA Views
- Date: 1989-09
- Subjects: Government, Resistance to -- South Africa , South Africa -- History -- 20th century , South Africa -- Politics and government
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/33610 , vital:32905 , Bulk File 7
- Description: APDUSA Views was published by the African People’s Democratic Union of Southern Africa (Natal), an affiliate of the New Unity Movement.
- Full Text: false
- Date Issued: 1989-09
- Date: 1989-09
- Subjects: Government, Resistance to -- South Africa , South Africa -- History -- 20th century , South Africa -- Politics and government
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/33610 , vital:32905 , Bulk File 7
- Description: APDUSA Views was published by the African People’s Democratic Union of Southern Africa (Natal), an affiliate of the New Unity Movement.
- Full Text: false
- Date Issued: 1989-09
Rhodos, Vol. 1, No. 8
- Date: 1989-09
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14798 , http://hdl.handle.net/10962/d1019037
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1989-09
- Date: 1989-09
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14798 , http://hdl.handle.net/10962/d1019037
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1989-09
The Educational Journal
- Date: 1989-09
- Subjects: Education –- South Africa , South Africa -- Politics and government , Government, Resistance to -- South Africa
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/37283 , vital:34144 , Bulk File 7
- Description: The Educational Journal was the official organ of the Teachers' League of South Africa and focussed on education within the context of a racialized South Africa.
- Full Text: false
- Date Issued: 1989-09
- Date: 1989-09
- Subjects: Education –- South Africa , South Africa -- Politics and government , Government, Resistance to -- South Africa
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/37283 , vital:34144 , Bulk File 7
- Description: The Educational Journal was the official organ of the Teachers' League of South Africa and focussed on education within the context of a racialized South Africa.
- Full Text: false
- Date Issued: 1989-09
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