evidence: Above: The living holotype of Chindongo longior (previously called Pseudotropheus longior), BMNH 1995.8.15: 9 (86.7 mm SL), from Mbamba Bay, Tanzania; about 1000 meters south of Chinyangi Point, collected 14 April 1990 by B. Kilian and L. Seegers. Photographed alive in Germany an unspecified interval after collection. [...] The algae of such a territory therefore grow better than in the surrounding area and are kept clean; these areas are light greenish whereas in the surrounding areas the grey color of the rocks is dominant. The females of P. longior seemed to be territorial as well, but since males and females look very much alike this cannot be stated with certainty. Aquarium observations confirmed the aggressiveness of P. longior. (Seegers, 1996: 107-108)Seegers regards one of the two syntype specimens (now the paralectotype) of Fryer's C. elongatus as actually belonging to C. longior. The type locality of both species is Mbamba Bay, Tanzania, where they are sympatric and, indeed, syntopic (found together on the very same rocky shore). C. longior is evidently known at present only from the immediate vicinity of Mbamba Bay.