1 literature reference for Maravichromis formosus (Trewavas, 1935):

Author: Heiner, I. and B. Neuhaus
Year: 1992
Title: Maravichromis Eccles & Trewavas, 1989, a junior synonym of Mylochromis Regan, 1920 (Teleostei, Cichlidae).
Source: Cybium 16(2):173.