callainos, Pseudotropheus Stauffer [J. R., Jr.] & Hert [E.] 1992:255, Figs. 2-5 [Ichthyological Exploration of Freshwaters v. 3 (no. 3); ref. 20010] Nkhata Bay, 11°35'S, 34°41'E, Lake Malawi [Lake Nyasa], southeastern Africa, depth 3-4 meters. Holotype: PSU 2542.1. Paratypes: MFU 2 (4), PSU 2542.2 (6), USNM 322426 (9). •Valid as Metriaclima callainos (Stauffer & Hert 1992) -- (Stauffer et al. 1997:204 [ref. 23216], Konings & Stauffer 2006:233 [ref. 28844], Ciccotto et al. 2011:23 [ref. 31119], Stauffer et al. 2013:103 [ref. 32704], Konings 2016:59 [ref. 34521]). •Valid as Maylandia callainos (Stauffer & Hert 1992) -- (Ufermann 2001:60 [ref. 30286]). Current status: Valid as Maylandia callainos (Stauffer & Hert 1992). Cichlidae: Pseudocrenilabrinae. Distribution: Eastern Africa: Lake Malawi. Habitat: freshwater.