Hymenocephalus sazonovi Schwarzhans, 2014
photo by Schwarzhans, W.

Family:  Macrouridae (Grenadiers or rattails)
Max. size:  13.1 cm TL (male/unsexed)
Environment:  benthopelagic; marine; depth range 340 - 1100 m
Distribution:  Eastern Pacific: probably endemic to the Nazca and Sala y Gomez ridges.
Diagnosis:  Dorsal spines (total): 2-2; Dorsal soft rays (total): 9-10. This species is distinguished by the following characters: body much less slender than typical for the genus, with very thin head bones; pelvic fin rays 12-13; pectoral fin rays 15-16; gill rakers 18-20; no barbel; orbit 21% HL; blunt snout with high frontal ridge, barely protruding, short, 23% HL; ventral striae extending about ? distance from pelvic fin bases to periproct region; infraorbital canal is wider than other canal systems; very small preopercular supporter; otolith compressed (otolith length to height (OL:OH) is 0.8; colliculi separated and small; small pseudocolliculum, total colliculum length to pseudocolliculum length (TCL:PCL) is 1.8 (Ref. 98298).
Biology: 
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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