Life colour variation and substrate matching in Ptenopus adamanteus sp. nov. (A–D: northern populations; E–H: southern populations): A NMNW R11390 (holotype), from Grosse Bucht, ||Karas Region, Namibia (–26.7338, 15.1041); B, C NMNW R11393 (paratype) from near locality A (–26.7208, 15.1026); D NMNW R11391 (allotype), from locality A; E NMNW R11610 from 30 km E of Port Nolloth, Northern Cape Province, South Africa (–29.3049, 17.1836), not on native substrate; F NMNW R11611 from the same locality as E on native substrate; G NMNW R11598 from Oranjemund, ||Karas Region, Namibia (–28.5541, 16.4982); H unvouchered specimen from Port Nolloth (–29.2403, 16.8631), only 30 km W of locality of E/F. Photos by Francois S. Becker.