Eustomias melanonema Regan & Trewavas, 1930

Family:  Stomiidae (Barbeled dragonfishes), subfamily: Melanostomiinae
Max. size:  10.1 cm SL (male/unsexed); 14.78 cm SL (female)
Environment:  pelagic-oceanic; marine; depth range 0 - 680 m
Distribution:  Eastern Atlantic: known only from the vicinity of Cape Verde to just south of the equator in the Gulf of Guinea.
Diagnosis:  Two terminal bulbs separated by a long interspace, 0.6-1.8 times the length of distal bulb. Barbel length 76-92% SL. Short filaments 5-9 (less than 6% SL) without prominent bulblets, arising together from distal bulb or from a short distal stem; 1 filament thicker and longer than the rest. Some or all filaments with pigmented axes. Distal bulb long about twice as long as wide, with almost straight, parallel margins,1.5-2.5 times proximal-bulb length. Axis of stem and between bulbs with or without pigment; a black spot at proximal end of distal bulb in those with pigment. External chevron-shaped or roundish striated areas on stem unpigmented. Middorsal paired spots between occiput and dorsal-fin origin 8 (Ref. 11333).
Biology: 
IUCN Red List Status: Least Concern (LC); Date assessed: 22 May 2013 Ref. (130435)
Threat to humans:  harmless


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