Metriaclima callainos (Stauffer & Hert, 1992)
最初命名為 Pseudotropheus callainos:
- Stauffer, Jay Richard Jr. & E. Hert. 1992. "Pseudotropheus callainos, a new species of mbuna (Cichlidae), with analyses of changes associated with two intra-lacustrine transplantations in Lake Malawi, Africa". Ichthyological Explorations of Freshwaters. v. 3(n. 3), pp. 253-264 (crc01065) (摘要).
保育: Metriaclima callainos 被評鑑為國際自然保育聯盟瀕危物種紅皮書名單中的 (VU) 易危的 (2006). Although the Cobalt Zebra has been collected for the ornamental fish trade since the early beginning of the Malawi cichlid hobby, sometimes at a rate of more than 20,000 zebra per year, there is no visible threat to its existence. None of the geographical variants seems to be at risk.