Astronesthes lucibucca Parin & Borodulina, 1996

Family:  Stomiidae (Barbeled dragonfishes), subfamily: Astronesthinae
Max. size:  10 cm SL (male/unsexed)
Environment:  pelagic-oceanic; marine; depth range 150 - 210 m
Distribution:  Southeast Pacific: Type specimens were taken from the transition zone between the subtropical and subantarctic gyres. Possibly, it is more widely distributed in the transitional zone of the southern hemisphere, i.e., in the southern Subtropical Convergence Region.
Diagnosis:  Dorsal soft rays (total): 15-16; Anal soft rays: 14-16; Vertebrae: 45-46. Last photophore of VAL series in advance both of origin of anal and last photophore of VAV series. Luminous patches on head, when fully developed in fish > 9.5 cm SL, appearing on upper, middle and lower parts of gill cover and behind eye, on cheek; no luminous patches on body. In immature fish < 6 cm SL, chin barbel fully developed, longer than head, its swollen tip forming a narrow lobe with weak oblique ribs; distal part of barbel twisted at a right angle (Ref. 27676).
Biology: 
IUCN Red List Status: Least Concern (LC); Date assessed: 18 July 2019 Ref. (130435)
Threat to humans:  harmless


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