Lampanyctus isaacsi Wisner, 1974

Family:  Myctophidae (Lanternfishes), subfamily: Lampanyctinae
Max. size:  15.8 cm SL (male/unsexed); max.weight: 26.7 g
Environment:  pelagic-oceanic; marine; depth range 0 - 2300 m, oceanodromous
Distribution:  Eastern Central Atlantic: found only in the Mauritanian Upwelling Region (20°N-5°N), mainly east of 30°W, and in the Guinean Province south to about 16°S in the Angola Current, but to about 3°S in the region of 20°W. Specimens reported from the western tropical Atlantic off eastern Brazil are regarded as waifs.
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 14-16; Anal spines: 0-0; Anal soft rays: 17-20; Vertebrae: 35-36. 13-14 AO photophores; 9-10 tooth patches on the lower limb of the second gill arch; 34-36 lateral line organs (Ref. 36121).
Biology:  High-oceanic, mesopelagic species. Found at 550-750 m during the day, at 40-325 m during the night, while maximum abundance is at 100m (Ref. 4479).
IUCN Red List Status: Least Concern (LC); Date assessed: 11 July 2012 Ref. (130435)
Threat to humans:  harmless


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