Poecilopsetta beanii
Deepwater Dab
Collection Details
Specimens
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Pleuronectfiormes (Flatfishes)
Poecilopsettidae (Bigeye Flounders)
Poecilopsetta
Poecilopsetta beanii (Deepwater Dab)
Description
This species account was compiled from
Composite (multiple sources) (McEachran, J.D. and J.D. Fechhelm. Fishes of the Gulf of Mexico. University of Texas Press, Austin.)
and processed using AI-assisted text extraction.
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Characters
Elongate and oval in profile, with a relatively short head. Eyes are separated by a very narrow ridge, upper eye extends above margin of head, and lower eye is slightly anterior to upper eye. Mouth is small and rather symmetrical. Maxilla extends to anterior section of lower eye. Jaw teeth are villiform and arranged in two rows. Gill rakers on first arch are moderately short and stout and number 6 on upper limb and 10 or 11 on lower limb. Measurements are expressed as percent of SL: head length 19%–22%, snout length about 3%, eye diameter 7%–9%, upper jaw length 6%–8%, ocular-side pectoral fin length 9%–10%, body depth 32%–39%. Pectoral fin on ocular side has 10 simple rays. Dorsal fin has 63 to 68 rays. Anal fin has 50 to 56 rays. Caudal fin is bluntly pointed. Scales are ctenoid on ocular side and cycloid on blind side. Lateral line on ocular side extends onto caudal fin and consists of 80 to 89 scales.
Ocular side is brownish, with dark markings that are most pronounced along upper and lower sections of body. Black blotches are located on middle of upper and lower margins of caudal fin.
Distribution
Western Atlantic from New England to northern Brazil, including the Gulf of Mexico and the Antilles.
Habitat Associations
Between 155 and 1,639 m depth
Biology
Maximum known size is 90 mm SL
Found along the outer continental shelf and slope (Ref. 57192).
Reproductive mode: dioecism; fertilization: external; nonguarders (open water/substratum egg scatterers); parental care: none.
IUCN Red List Status: Least Concern (LC), assessed 2018-10-12.
Commercial or Environmental Importance
Fisheries: of no interest.
References
Breder 1927 (as P. inermis, in part)
Norman 1934
Reid 1934 (as P. albomarginata?)
Munroe 2002d
Breder, C.M. and D.E. Rosen (1966) Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p.
Hoshino, K. (2000) Redescription of a rare flounder, Poecilopsetta inermis (Breder) (Pleuronectiformes: Pleuronectidae: Poecilopsettinae), a senior synonym of P. albomarginata Reid, from the Caribbean Sea and tropical western Atlantic. Ichthyol. Res. 47(1):95-100.
Munroe, T.A. (2003) Poecilopsettidae. Righteye flounders. p. 1922-1924. In K.E. Carpenter (ed.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Atlantic. Vol. 3: Bony fishes part 2 (Opistognathidae to Molidae), sea turtles and marine mammals.
Patzner, R.A. (2008) Reproductive strategies of fish. pp. 311-350. In Rocha, M.J., A. Arukwe and B.G. Kapoor (eds). Fish reproduction: cytology, biology and ecology. Science Publisher, Inc. Oxford. 631 p.
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