Variation in color and pattern within living paratypes of B. ombelanonga sp. nov.: A, B sub-adult (of unknown sex) from Embala Seque (14 km N of Cassumbi village), Bié Province (MHNCUP_ANF 0320) C juvenile male, Cuito River source lake, Moxico Province (PEM A12537) D adult female, Cuando River source, Moxico Province (PEM A12770) E adult male, Quembo River source lake, Moxico Province (PEM A12787) F adult male, Cuanavale River source lake, Moxico Province (PEM A12800). Photographs by LMPC (A, B) and WC (C–F).