11987 Pseudomystus siamensis (Regan, 1913) Bagridae Bagrid catfishes Siluriformes Teleostei Asian bumblebee catfish Asia: Chao Phraya and Mekong basins (Ref. 27732). Reported from Maeklong, Peninsular and Southeast Thailand river systems (Ref. 26336). AMNH 58305 Leiocassis siamensis AMNH 14507 1928 Leiocassis siamensis AMNH 227970 1998 Pseudomystus siamensis AMNH 228005 1998 Pseudomystus siamensis AMNH 228018 1998 Pseudomystus siamensis