Dolichopteryx rostrata Fukui & Kitagawa, 2006

Family:  Opisthoproctidae (Barreleyes or spookfishes)
Max. size:  6.62 cm SL (male/unsexed)
Environment:  bathypelagic; marine; depth range - 600 m
Distribution:  Northeast Atlantic: Hebrides Is,
Diagnosis:  Dorsal soft rays (total): 9-9; Anal soft rays: 8-8; Vertebrae: 41-41. The new species is characterized by the following: an elongate snout and head; small pouchlike eyes; an adipose fin; short dorsal fin base; anal fin base originating under dorsal fin base; a clear longitudinal suborbital brownish band extending forward from behind posterior margin of orbit to snout tip; and 41 (= 26+15) vertebrae. Total fecundity is low; the ovarian eggs number only 473, despite the ovary having developed ova. Ovarian eggs could be clearly subdivided into an 'undeveloped group' (0.1-0.7?mm diameter classes, n?=?405) and a 'developed group' (0.9-1.3?mm classes, n=68), based on their frequency distribution (Ref. 58272).
Biology: 
IUCN Red List Status: Least Concern (LC); Date assessed: 09 October 2018 Ref. (130435)
Threat to humans:  harmless


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