A. fuscus ^ZBK: MZB 5934 (holotype), 22.8 mm SL; MZB 5935 (3 paratypes), 22.2-28.2 mm SL; CMK 11712 (8 paratypes); 22.6-28.8 mm SL; ZRC 38840 (4 paratypes), 26.1- 28.8 mm SL; Borneo: Kalimantan Barat, Danau Sentarum area, Sungai Hulu Leboyan at Keluwin .