Photonectes achirus Regan & Trewavas, 1930

Family:  Stomiidae (Barbeled dragonfishes), subfamily: Melanostomiinae
Max. size:  8.7 cm SL (male/unsexed)
Environment:  bathypelagic; marine; depth range 75 - 1400 m
Distribution:  Northwest Atlantic: Caribbean Sea and northeastern Gulf of Mexico (Ref. 37473). Western Pacific Ocean in the vicinity of Howland and Baker islands (Ref. 92891).
Diagnosis:  Dorsal soft rays (total): 14-16; Anal soft rays: 14-19. This species differs from other species in the subgenus Photonectes in the following set of characters: blue luminous tissue in a band extending from pectoral region to pelvic fins; with short transverse streaks between OV photophores, and in patches on sides of isthmus, under lower jaw and above end of maxillary; very long gill filaments very long, extending beyond opercular opening; shorter barbel than head length, with small bulb ending in a terminal appendage with a tiny bulb at tip (Ref. 92891).
Biology:  Meso- and bathypelagic (Ref. 58302).
IUCN Red List Status: Least Concern (LC); Date assessed: 12 October 2018 Ref. (130435)
Threat to humans:  harmless


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