Adding to the rapidly growing numbers of new fish species to be described from Myanmar in the past few years, Heok Hee Ng and Maurice Kottelat have described a new akysid catfish.
The new species, Akysis vespa, was collected in the Ataran drainage in the south of Myanmar and is believed to be a member of the A. variegatus species complex.
According to Ng, the genus holds great hidden diversity, reflected in the fact that 10 of the 21 known species have been described fairly recently. Ng also believes that there is evidence to suggest that the genus isn't monophyletic, so it's possible that later studies could see the fish being broken up into new genera.
Full details on how to identify the new catfish are given in the paper: Ng, HH and Kottelat, M. (2004) - Akysis vespa, a new species of catfish (Siluriformes: Akysidae) from the Ataran River drainage, Myanmar. Ichthyological Exploration of Freshwaters, Vol. 15, No. 3. 193-200.