Lycodes diapterus Gilbert, 1892
Black eelpout
photo by Orlov, A.

 Family:  Zoarcidae (Eelpouts), subfamily: Lycodinae
 Max. size:  33 cm TL (male/unsexed)
 Environment:  bathydemersal; depth range 146 - 844 m
 Distribution:  North Pacific: Southern California west of the Channel Islands north along the North American coast to the Pacific side of Vancouver Island; apparently not present in the Strait of Georgia or Puget Sound, and has been reported as far south as San Diego.
 Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 109-118; Anal spines: 0-0; Anal soft rays: 99-109; Vertebrae: 118-126. This species is distinguished by the following: with scales covering the nape and the entire postorbital dorsal surface of the head (in adults 15.0 cm SL and larger): it differs from L. beringi in having higher counts of dorsal-fin ray (usually 111 or more), anal-fin ray (usually 100 or more), vertebral (usually 119 or more), and gill raker (usually 15 or more); differs from L. hubbsi in having 19-21 pectoral-fin rays (vs. 20-23), position of the first dorsal-fin pterygiophore at the sixth or seventh interneural gap (vs. third), and color pattern, for it lacks narrow light bands extending onto dorsal fin and across nape; differs from the 'L. nakamurae group’’ (nakamurae, pectoralis, nishimurai) in having 4 postorbital pores (vs. 1 or 2), the posteriormost without a short tube; lower pectoral-fin lobe rounded, the tips of the rays rounded and the middle rays often branched, fin membrane not incised (vs. pointed, with rays pointed and unbranched, membrane moderately incised); scales often present on base of pectoral fin; light inverted V-shaped bands usually present on body (Ref. 80505).
 Biology:  Found on muddy bottoms (Ref. 2850). May be used as bait (Ref. 27436). Flesh considered firm and tasty but not esteemed (Ref. 27436).
 IUCN Red List Status: Not Evaluated  (Ref. 96402)
 Threat to humans:  harmless
 Country info:   

 Entered by: Froese, Rainer - 01.05.91
 Modified by: Bailly, Nicolas - 09.03.09
 Checked by: Torres, Armi G. - 04.07.94

Source and more info: For personal, classroom, and other internal use only. Not for publication.

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