Petrotilapia ?mumbo blue?
The dark submarginal band in the spinous part of the dorsal fin of both male and female distinguishes P. mumboensis from P. tridentiger, P. xanthos, P. flaviventris, and P. palingnathos, which lack such a band. Males of P. mumboensis are light blue with 8-10 dark blue vertical bars, light blue cheek, and a light blue to gray gular region, which distinguishes it from P. genalutea, P. nigra, P. chrysos, P. microgalana, and P. pyroscelos. Petrotilapia genalutea are dull gray-blue with 5-7 black vertical bars with orange-yellow cheek and a black throat. Males of P. nigra and P. chrysos are predominantly blue-black with 7-10 gray/brown bars, have a dark blue cheek, and a black throat. Males of P. microgalana are bright blue with 5-7 faint black vertical bars, and have a light blue cheek and a yellow throat while those of P. pyroscelos are blue with bronze highlights and have a red pelvic fin. Females of P. mumboensis are graybrown to light brown with a conspicuous black submarginal band in