Aulonocara jacobfreibergi is appropriately nicknamed the "African Butterfly Peacock." There are several variants of this popular Aulonocara species in the hobby, including Eureka, Mamela, Otter Point, Hongi Island, Cape Kaiser, Lemon Jake, and several others.
Males of this spectacular species differ from most other Peacocks in their broad, iridescent white dorsal and caudal fin margins. Females, on the other hand, can easily be confused with other Aulonocara females, being grayish-brown in color with vertical banding on the body and having rounded anal and dorsal fins. A. jacobfreibergi is further distinguished from other Peacocks by its large size, attaining lengths of up to 8 or 9 inches, but often attains sexual maturity at half that size. Another distinguishing characteristic of the Butterfly Peacock is its moderate to deeply forked tail fin, which gives it the appearance of a swallow's tail.