Photo d: Maylandia mbenjii, "normal" male, and photo e: M. mbenjii, OB male, both photographed underwater at Mbenji Island to which this form is endemic. This species was first known from the work of Ribbink et al. (1983), who referred to it as Pseudotropheus zebra "mbenji"; it was recently given a formal name by Stauffer et al. (1997). Like M. greshakei, normal males of M. mbenjii are pale blue with faint vertical bars and a reddish dorsal fin. Stauffer et al. distinguish the two species by very slight differences in the means of several head and body proportions and counts (all with overlapping ranges). Photos from Plate 2d and 2e of Ribbink et al., 1983; reproduced by permission of the Zoological Society of Southern Africa.

 

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