Main identification features
- head scalelesseyes small
- lateral line3 parts
- tail fin 14-15
- rear nostril small
Cohen’s Brotula
Snout pointed; eyes small (1.5-2 % of standard length); relatively narrow between eyes (<4.4% of SL); body elongate, compressed, decreasing to slender tail base; large pores along lower and upper jaws, and on top of head, pore at top corner of operculum tubular; 3 pores at lower corner of preoperculum; each pelvic fin consists of a filament inserted under gill cover and reaching 2/3 distance to anal fin; top jaw with a knob at its lower rear corner that is before the top rear corner; front of roof of mouth with 10 strongly depressible teeth teeth, and granular teeth at front; jaws with inner row pointed teeth that become larger towards front, and outer rows of granular teeth; opercular spine weak, covered with skin; upper part of first gill arch with 3 small knobs and 1 long raker, lower part with 4-5 long rakers and 7-8 small knobs; front nostril low on snout, closer to lip than is rear nostril, rear nostril small (~1/4 eye diameter); dorsal fin 74-77 rays, its origin above base of pectoral; anal 53-57 rays; tail 14-15 rays; head without scales; scales small, imbedded, covering body; lateral line in 3 parts, top part (4 pores) between neck and dorsal fin; center part (15 pores) from above corner of opercle to just before anal fin origin, lower part (21 pores) from behind pectoral to rear end of body; male copulatory organs with a penis and 1 pair of large pseudoclaspers at its base, all covered by a fleshy hood.
Color of preserved fish: Uniform brown.
Depth: intertidal (5-7m).
Habitat: on mud bottom
Reaches at least 5.3cm
Known only from the shores of Panama Bay, Panama.
Attributes
Cites: Not listed.
Climate Zone: Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo).
Depth Range Max: 10 m.
Depth Range Min: 0 m.
Diet: mobile benthic gastropods/bivalves; mobile benthic worms; mobile benthic crustacea (shrimps/crabs).
Eastern Pacific Range: Northern limit=9; Southern limit=9; Western limit=-80; Eastern limit=-79; Latitudinal range=1; Longitudinal range=1.
Egg Type: Live birth; No pelagic larva; No pelagic phase.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: East Pacific endemic; Tropical Eastern Pacific (TEP) endemic; All species.
Habitat: Mud; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 5.3 cm.
Regional Endemism: TEP endemic; Continental TEP endemic; Panamic province endemic; Continent only; Continent; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;
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- Møller, P.R., Schwarzhans, W. and Nielsen, J.G., 2004., Review of the American Dinematichthyini (Teleostei: Bythitidae). Part I. Dinematichthys, Gunterichthys, Typhliasina and two new genera., Aqua, 8:141-192.
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