Threatened fishes of the world: Ogilbia pearsei (Hubbs, 1938) (Bythitidae)

" Common names: Sak kay (Mayan = white fish), dama blanca ciega (S). Conservation status: Endangered (IUCN), VU(D2) (IUCN). Identification: Total absence of eyes. Appearing white with pink posterior margins. Compressed and naked head with large, well developed sensory cavities and papillae. Longitudinal split at mouth edges, nose opening adjacent to superior lip. Scaled body. Long dorsal and anal fins not continuous with caudal. Males have claspers. Up to 95 mm SL. Drawing by Rhian Hicks, 90.5 mm SL. Distribution: Cenotes and groundwater on the Yucatan peninsula, Mexico (20–21°N, 89–91°W). This species is sympatric in some locations with Ophisternon infernale (Synbranchidae) and Rhamdia guatemalensis (Pimelodidae) as well as with some endemic crustaceans (Chumba-Segura 1983). Abundance: As top predator in the anchialine community it is likely that the population is small (Pohlman et al. 1997). In freshwater habitats populations are also small, with few specimens observed in each cenote "