最初命名為 Melanochromis perspicax:
- Trewavas, Ethelwynn. 1935. "A Synopsis of the Cichlid Fishes of Lake Nyasa". Annals and Magazine of Natural History. Series 10; pp. 65-118 (crc00118)
保育: Pseudotropheus perspicax 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). It is a very common cichlid of the deeper rocky habitat and due to its small size and association with rocks is not currently threatened by over-fishing.