Benthosema pterotum (Alcock, 1890)
Skinnycheek lanternfish
Benthosema pterotum
photo by Devarapalli, P.

Family:  Myctophidae (Lanternfishes), subfamily: Myctophinae
Max. size:  7 cm TL (male/unsexed)
Environment:  benthopelagic; marine; depth range 10 - 300 m
Distribution:  Indo-West Pacific: From about 25°S off Mozambique to the Gulf of Oman, east to the Bay of Bengal, Indonesia and western Australia, and north to Japan. Southeast Atlantic: Larvae were present in cruise collections off the eastern coast of South Africa, however, adults have not been reported in this area (Ref. 41388).
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 13-14; Anal spines: 0-0; Anal soft rays: 17-22
Biology:  Benthopelagic and mesopelagic in slope and near continental and island waters (Ref. 9835, 11230). Found in 130-300 m during the day and in 10-200 m at night (Ref. 4066). Feeds in the evening (Ref. 9191). Feeds on mainly on copepods and various crustacean larvae. Lipid content is 4.6 % in fresh body weight (Ref. 8966).
IUCN Red List Status: Least Concern (LC); Date assessed: 04 February 2009 Ref. (130435)
Threat to humans:  harmless
Country info:  Due to confusion with B. fibulatum, the occurrence of this species in the Philippines (old records) needs further confirmation (Ref. 9835). Museum: Bulan, USNM 55900 (holotype of Myctophum gilberti) (Ref. 280).


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