Royal Museum for Central Africa, Biology Department, Section Vertebrates, Tervuren, Belgium.
Department of Biology, KU Leuven, Laboratory of Biodiversity and Evolutionary Genomics, Leuven, Belgium.
J Fish Biol. 2020 Nov;97(5):1554-1559. doi: 10.1111/jfb.14455. Epub 2020 Sep 28.
Haplochromis pharyngalis and Haplochromis petronius, two endemic cichlids from the Lake Edward system (Uganda, Democratic Republic of the Congo), are very similar in general morphology but have been reported to differ in pharyngeal jaw morphology and distribution. This study analysed 51 morphometrics and various qualitative characteristics of 48 specimens from different localities. The morphological traits of both species strongly overlap, and differences in the pharyngeal jaw morphology correspond to a geographic morphocline. We conclude that all specimens belong to one valid species, H. pharyngalis, and consider H. petronius to be a synonym.
爱德华湖系统（乌干达、刚果民主共和国）的两种特有慈鲷，口孵非鲫和彼得氏非鲫，在一般形态上非常相似，但据报道其咽颌形态和分布存在差异。本研究分析了来自不同地点的 48 个标本的 51 个形态特征和各种定性特征。两种物种的形态特征强烈重叠，咽颌形态的差异对应于地理形态渐变群。我们得出结论，所有标本都属于一个有效物种，即口孵非鲫，而彼得氏非鲫被认为是其同义词。
