The most recent issue of the journal Copeia contains a description of a new species of crevice catfish from the Salween River drainage in western Thailand.
Heok Hee Ng and Jeremy Wright name the new species Amblyceps protentum, which they distinguish from congeners in having a combination of an elongate, slender body most evident in the small body depth at anus (8.0"11.0% standard length) and caudal-peduncle depth (8.0"10.3% standard length), a long adipose-fin base (18.8"22.7% standard length) and large eye (diameter 6.9"8.8% head length).
The authors also discus the taxonomy of Indochinese Amblyceps, and consider A. mucronatum to be a junior synonym of A. caecutiens.
For more information, see the paper: Ng, HH and JJ Wright (2009) A new torrent catfish from western Thailand (Siluriformes: Amblycipitidae). Copeia 2009, pp. 369"377.