Colomesus
Colomesus is a genus of pufferfishes confined to tropical South America. Apart from differences in size, the two species are superficially similar, being green above, white below, and patterned with black transverse bands across the dorsal surface. "C. asellus" is commonly found in the aquarium trade while "C. psittacus" due to its size and more specialized requirements is not found as often. Species. There are currently three recognized species in this genus according to FishBase and the Catalog of Fishes.