Narcetes shonanmaruae Poulsen, Ida, Kawato & Fujiwara, 2021
Yokozuna Slickhead
photo by Fujiwara, Y.

Family:  Alepocephalidae (Slickheads)
Max. size:  121 cm SL (female); max.weight: 25 kg
Environment:  bathypelagic; marine; depth range 2171 - 2572 m
Distribution:  Northwest Pacific: Japan.
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 14-14; Anal spines: 0-0; Anal soft rays: 11-12. This species is distinguished by the following characters: anal fn is entirely behind the dorsal fin; multiserial teeth on premaxillary, maxillary, and dentary; predorsal scale rows > 70; longitudinal scale rows > 110; dorsal to lateral line scale row > 15; anal to lateral line scale rows > 17; branchiostegal rays 7; dorsal-fn rays < 15; precaudal vertebrae < 30; epurals 2; the lengths of head, snout, upper and lower jaws, orbit diameter, dorsal and anal fn bases are relatively short against standard length (Ref. 123515).
Biology: 
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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