Stemonosudis retrodorsalis Ho, Russell, Graham & Psomadakis, 2019
Back-fin barracudina

Family:  Paralepididae (Barracudinas), subfamily: Paralepidinae
Max. size:  16.1 cm SL (male/unsexed)
Environment:  bathypelagic; marine; depth range 40 - 514 m
Distribution:  Indo-West Pacific: Australia, Indonesia and the Philippines.
Diagnosis:  Dorsal soft rays (total): 9-10; Anal soft rays: 32-34; Vertebrae: 89-91. This species of the S. rothschildi species complex is distinguished by the following characters: dorsal fin is situated far posteriorly, at about vertical through anal-fin origin; preanal length 73.2-79.9% SL; dorsum before dorsal fin with six saddles; on abdominal ridge before pelvic fin with 4 saddles; horizontal distance between origins of pelvic and dorsal fins 96.3-105.3% horizontal distance between origins of pelvic and anal fins; vertebrae before dorsal-fin origin (DFO) 57-58 and before anal-fin origin 56-58; vertebrae between pelvic-fin origin (VFO) and DFO 17-19; lateral-line scales before DFO 56-68 and before AFO 57-58 (Ref. 121607).
Biology:  Specimens were collected by bottom trawl at the continental slope (396-514 m), except for one that was collected by mid-water trawl (40-180 m) at night (Ref. 121607).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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