Hymenocephalus antraeus Gilbert & Cramer, 1897

Family:  Macrouridae (Grenadiers or rattails)
Max. size: 
Environment:  benthopelagic; marine; depth range 450 - 799 m
Distribution:  Eastern Central Pacific: Hawaiian Islands.
Diagnosis:  This species is distinguished by the following characters: pelvic fin rays 11-12 (usually 12); pectoral fin rays 13-15 (seldom 16); short projecting snout, 15-18% HL; short barbel, 3-4% HL, large orbit diameter, 35-40% HL; infraorbital width 8-10% HL; moderately long preopercular supporter, with obtuse angle at rear margin, 5-7% HL; 21-24 gill rakers; ventral striae reaching to ½ distance from pelvic fin bases to periproct; otolith has high predorsal lobe, with colliculi separated, closely placed across collum, with occasional tendency to partly join, terminating at some distance from anterior and posterior rims of otolith; otolith length to height (OL:OH), 0.95-1.1; total colliculum length to pseudocolliculum length (TCL:PCL), 1.6-1.7 (Ref. 98298).
Biology:  Benthopelagic (Ref. 58302).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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