Santiago

The black band cory, Osteogaster zygata, long known as Corydoras zygatus, is an armoured catfish from the middle Río Marañón watershed in eastern Ecuador and northern Peru. Also known in the trade as the 'zygus cory', it looks very similar to O. rabauti. In O. zygata the broad dark stripe on the upper body stops short of the lower caudal peduncle, and in O. rabauti it extends onto it.