Three new endemic Aphyosemion species (Cyprinodontiformes: Nothobranchiidae) from the Massif du Chaillu in the upper Louessé River system, Republic of the Congo
| Autor: | Michiel N. Jonker, Valdie N. Boukaka Mikembi, Gina Walsh, Rainer Sonnenberg, Jouke R. Van der Zee, Marco Paulo Alexandre |
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| Rok vydání: | 2018 |
| Předmět: |
Nothobranchiidae
Male Zoology Aphyosemion Biology Body size Cyprinodontiformes Rivers Animalia Animals Body Size Chordata Ecology Evolution Behavior and Systematics Ecosystem Taxonomy geography geography.geographical_feature_category Actinopterygii Massif Biodiversity biology.organism_classification Habitat Congo Animal Science and Zoology |
| Zdroj: | Zootaxa |
| ISSN: | 1175-5334 |
| Popis: | Three new ‘ Aphyosemion ’ species are described from the upper Louesse River in the Massif du Chaillu, Republic of the Congo, based on a combination of DNA, habitat preference, male colour pattern, and morphological data. ‘ Aphyosemion ’ cyanoflavum , new species, is a member of the ‘ A ’ . ogoense group. It differs from its congeners by a unique colour pattern and cephalic sensory system which contains a wide supra-orbital groove with large, densely pigmented anterior neuromasts and dark frontal neuromasts housed in one pit with one central anterior lobe. ‘ Aphyosemion ’ mandoroense , new species, and ‘ A ’ . cryptum , new species, are members of the ‘ A ’ . coeleste group. ‘ Aphyosemion ’ cryptum , new species, is in appearance very similar to ‘ A ’ . coeleste , but lacks the typical post opercular metallic green blotch and is generally larger in body size. Initial DNA analyses demonstrate that ‘ A ’ . cryptum, new species , is more closely related to ‘ A ’ . mandoroense , new species, than to ‘ A ’ . coeleste, despite similarity in appearance . ‘ Aphyosemion ’ cryptum, new species, and ‘ A ’ . coeleste occur syntopic in several locations in a sub-catchment of the upper Louesse system, however differ in microhabitat preference. ‘ Aphyosemion ’ mandoroense, new species, differs by male body and fin colour pattern from all species of the ‘ A ’ . coeleste group except ‘ A ’ . citrineipinnis . From the latter, it can be distinguished by the absence of red pigmentation and a dark grey to black margin in the unpaired fins. |
| Databáze: | OpenAIRE |
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