Variation in color and pattern within preserved paratypes of B. ombelanonga sp. nov.: A an adult male from Kawa Camp Headquarters, Luanda Province (UF Herp 187173) B sub-adult (of unknown sex) from Embala Seque, Bié Province (MHNCUPANF 320) C adult male from Cuanavale River source lake, Moxico Province (PEM A12800) D juvenile male from Cuito River source lake, Moxico Province (PEM A12537) E adult male from Quembo River source lake, Moxico Province (PEM A12787) F adult female from Cuando River source, Moxico Province (PEM A12770); and G adult male from Quembo River source lake, Moxico Province (SAIAB 204537). Photographs by SVN (A), LMPC (B), and WC (C–G).