Ogilbia robertsoni Møller, Schwarzhans & Nielsen, 2005
Brown brotula

Family:  Dinematichthyidae (Viviparous brotula)
Max. size:  7.1 cm SL (male/unsexed)
Environment:  demersal; marine; depth range 6 - 27 m
Distribution:  Eastern Pacific: Mexico to Costa Rica.
Diagnosis:  Dorsal soft rays (total): 67-77; Anal soft rays: 51-57; Vertebrae: 39-41. This species is distinguished by the following characters: Vertebrae 11 + 28-30 = 39-41, dorsal fin rays 67-77, anal fin rays 51-57, outer pseudoclasper with a single, long supporter, extruding into spine-like tip; inner pseudoclasper is slender with a long, straight supporter, almost length of supporter of outer pseudoclasper with ligamentous connection to outer pseudoclasper anteriorly; penis tapering; opercular spine with single sharp tip; scale patch on cheeks with 6-9 vertical scale rows; otolith length: height ratio 2.2-2.3 (Ref. 57883).
Biology:  Habitat not known; no ripe females were observed (Ref. 57883).
IUCN Red List Status: Least Concern (LC); Date assessed: 29 April 2008 Ref. (130435)
Threat to humans:  harmless


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