Original description as Limnochromis otostigma:
- Regan, Charles Tate. 1920. "A new cichlid fish of the genus Limnochromis from Lake Tanganyika". Annals and Magazine of Natural History. (Ser. 9) p. 152 (crc00244)
Conservation: Triglachromis otostigma is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (LC) least concern (2006).