Pseudotropheus williamsi (Günther, 1894)Description originale : Günther, A. 1894; Second report on the reptiles, batrachians, and fishes transmitted by Mr. H.H. Johnston, C.B., from British Central Africa. Proceedings of the Zoological Society of London 1893: 616-628. [Published in April 1894 according to Eschmeyer (1990). Descriptions of two new mbuna (Cynotilapia afra [as Hemichromis afer] and Pseudotropheus williamsi [as Chromis williamsi]) and several other Malawi haplochromines, and of Bagrus meridionalis and Aplocheilichthys johnstoni]
Pseudotropheus williamsi est l'espèce type du genre Pseudotropheus.

Variété de Makonde (Laxou/Maxeville, Congrès AFC 2008)
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