http://www.planetcatfish.com/catelog/image.php?image_id=5278
Easily distinguished from other bagrids in having a flat head, relatively short adipose fin, and filamentous extensions to the dorsal- and caudal-fin rays.
Etymology From the Greek hemi- meaning half and bagrus, the catfish genus. From the Greek nema, meaning thread and oura, meaning tail. In reference to the filaemntous extensions on the dorsalmost principal caudal rays.