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Trematocranus pachychilus, a new endemic cichlid from Lake Malawi (Teleostei, Cichlidae)

Abstract. A new species of Trematocranus, T. pachychilus sp. n., is described from Lake Malawi. So far, it has only been found at Jafua Bay, Mozambique. It can easily be distinguished from T. labifer by its molariform pharyngeal dentition. A morphometric study, including 24 measurements and 15 count...

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Detalles Bibliográficos
Autores principales: Dierickx, Katrien, Hanssens, Mark, Rusuwa, Bosco, Snoeks, Jos
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Pensoft Publishers 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5904553/
https://www.ncbi.nlm.nih.gov/pubmed/29670440
http://dx.doi.org/10.3897/zookeys.743.22814
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author Dierickx, Katrien
Hanssens, Mark
Rusuwa, Bosco
Snoeks, Jos
author_facet Dierickx, Katrien
Hanssens, Mark
Rusuwa, Bosco
Snoeks, Jos
author_sort Dierickx, Katrien
collection PubMed
description Abstract. A new species of Trematocranus, T. pachychilus sp. n., is described from Lake Malawi. So far, it has only been found at Jafua Bay, Mozambique. It can easily be distinguished from T. labifer by its molariform pharyngeal dentition. A morphometric study, including 24 measurements and 15 counts, was done to compare the new species with T. microstoma and T. placodon. Trematocranus pachychilus is characterised by its thick lips. This species further differs from T. microstoma by its bicuspid (vs. unicuspid) outer oral teeth, wide (vs. small) pharyngeal bone, and its head shape. It resembles T. placodon, from which it can be distinguished by its straight to concave head profile (vs. rounded), less-developed pharyngeal bones (vs. hypertrophied), and the presence of small to minute teeth on the lateral parts of the dentigerous area on the lower pharyngeal bone. A key to the species of Trematocranus is provided.
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spelling pubmed-59045532018-04-18 Trematocranus pachychilus, a new endemic cichlid from Lake Malawi (Teleostei, Cichlidae) Dierickx, Katrien Hanssens, Mark Rusuwa, Bosco Snoeks, Jos Zookeys Research Article Abstract. A new species of Trematocranus, T. pachychilus sp. n., is described from Lake Malawi. So far, it has only been found at Jafua Bay, Mozambique. It can easily be distinguished from T. labifer by its molariform pharyngeal dentition. A morphometric study, including 24 measurements and 15 counts, was done to compare the new species with T. microstoma and T. placodon. Trematocranus pachychilus is characterised by its thick lips. This species further differs from T. microstoma by its bicuspid (vs. unicuspid) outer oral teeth, wide (vs. small) pharyngeal bone, and its head shape. It resembles T. placodon, from which it can be distinguished by its straight to concave head profile (vs. rounded), less-developed pharyngeal bones (vs. hypertrophied), and the presence of small to minute teeth on the lateral parts of the dentigerous area on the lower pharyngeal bone. A key to the species of Trematocranus is provided. Pensoft Publishers 2018-03-14 /pmc/articles/PMC5904553/ /pubmed/29670440 http://dx.doi.org/10.3897/zookeys.743.22814 Text en Katrien Dierickx, Mark Hanssens, Bosco Rusuwa, Jos Snoeks http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Dierickx, Katrien
Hanssens, Mark
Rusuwa, Bosco
Snoeks, Jos
Trematocranus pachychilus, a new endemic cichlid from Lake Malawi (Teleostei, Cichlidae)
title Trematocranus pachychilus, a new endemic cichlid from Lake Malawi (Teleostei, Cichlidae)
title_full Trematocranus pachychilus, a new endemic cichlid from Lake Malawi (Teleostei, Cichlidae)
title_fullStr Trematocranus pachychilus, a new endemic cichlid from Lake Malawi (Teleostei, Cichlidae)
title_full_unstemmed Trematocranus pachychilus, a new endemic cichlid from Lake Malawi (Teleostei, Cichlidae)
title_short Trematocranus pachychilus, a new endemic cichlid from Lake Malawi (Teleostei, Cichlidae)
title_sort trematocranus pachychilus, a new endemic cichlid from lake malawi (teleostei, cichlidae)
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5904553/
https://www.ncbi.nlm.nih.gov/pubmed/29670440
http://dx.doi.org/10.3897/zookeys.743.22814
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