Mccosker's coralbrotula (Ogilbia mccoskeri) is a ray-finned fish of the family Dinematichthyidae. It inhabits marine (saltwater) waters in reef-associated environments. This species can reach a maximum total length of 6.5 cm. It occurs at depths between 0 and 5 metres. With a trophic level of 3.3, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Data Deficient on the IUCN Red List.
Dorsal soft rays (total): 80 - 86; Anal soft rays: 63 - 69; Vertebrae: 43 - 45. This species is distinguished by the following: Vertebrae 11 + 32-34 = 43-45, dorsal fin rays 80-86, anal fin rays 63-69, outer pseudoclaspers long, sticklike, inner pseudoclasper absent, penis tapering, opercular spine with a single, sharp tip, scales on cheeks reduced to a small patch on upper cheek in 4-6 vertical rows; otolith length: height ratio 2.0, sulcus axis strongly inclined versus otolith axis .
Behavioural data for Mccosker's coralbrotula is currently being reviewed.
Marine; reef-associated; depth range 0 - 5 m . Tropical Central Atlantic: Panama.
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