Ogilbia galapagosensis (Poll & LeLeup, 1965)
Galapagos cuskeel
photo by FAO

Family:  Dinematichthyidae (Viviparous brotula)
Max. size:  5.8 cm SL (male/unsexed)
Environment:  demersal; freshwater; brackish
Distribution:  South America: Galapagos Islands. Apparently endemic to the fresh- and brackishwater of the cave systems on the Santa Cruz Island, where it is replaced by O. deroyi in the marine environment.
Diagnosis:  Dorsal soft rays (total): 69-74; Anal soft rays: 54-62. This species has the following characters: Dorsal fin rays 69-76, anal fin rays 54-62; outer pseudoclasper with a long spine-like supporter; inner pseudoclasper very short, anteriorly inclined; opercular spine with a single, sharp tip; cheeks naked; body not pigmented; upper preopercular pore absent; caudal fin rays 11-12 (Ref. 57883).
Biology:  Uncommon species (Ref. 34024). Inhabits rocky crevices; cave species (Ref. 27297).
IUCN Red List Status: Endangered (EN); Date assessed: 13 September 2022 (B1ab(iii)+2ab(iii)) Ref. (130435)
Threat to humans:  harmless


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