HomeFish encyclopediaRay-finned fishesCusk eelsViviparous brotulasCohen's mudbrotula Cohen's mudbrotula (Gunterichthys coheni) Scientific name: Gunterichthys coheni M?ller, Schwarzhans & Nielsen, 2004 The Cohen's mudbrotula (Gunterichthys coheni) is a marine fish of the family Bythitidae. Native range: Eastern Central Pacific, Panama. BiologyDorsal soft rays (total): 74-77; Anal soft rays: 53 - 57; Vertebrae: 40. Diagnosis: Pointed snout; small distinct eyes, 1.5-2.0% SL; head naked; posterior infraorbital pores 3; posterior nostril small, about quarter of eye diameter; rays in dorsal fin 74-77, anal 53-57, caudal 14-15; otolith with length to height ratio 2.1-2.2 and fused colliculi; sulcus large; 1 pair of pseudoclaspers with 2 almost equally long supporters.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGunterichthys coheniFamilyBythitidae (Viviparous brotulas)OrderOphidiiformes (Cusk eels)ClassActinopterygii (Ray-finned fishes)Maximum length4.9Depth range5 m (16 ft)EnvironmentMarine; benthopelagic; depth range ? - 5 mClimateTropicalDistributionEastern Central Pacific: Panama.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026