最初命名為 Melanochromis crabro:
- Ribbink, Anthony J & D.S.C. Lewis. 1982. "Melanochromis crabro sp. nov.: a cichlid fish from Lake Malawi which feeds on ectoparasites and catfish eggs". Netherlands Journal of Zoology. v. 32(n. 1), pp. 72-87. DOI: 10.1163/002829682X00058 (crc00172) (摘要)
保育: Pseudotropheus crabro 被評鑑為國際自然保育聯盟瀕危物種紅皮書名單中的 (LC) 無危 (2018). P. crabro is a rare species and is almost never collected by local fishermen. There exists also no local name for this distinct species. Even though P. crabro is a rare species, it has a wide distribution and is not threatened in its existence.