Diaphus problematicus Parr, 1928
Problematic lanternfish
Diaphus problematicus
photo by JAMARC

 Family:  Myctophidae (Lanternfishes), subfamily: Lampanyctinae
 Max. size:  10.5 cm SL (male/unsexed)
 Environment:  bathypelagic; depth range 40 - 820 m, oceanodromous
 Distribution:  Tropical waters of all three oceans with extensions into higher latitudes in western boundary currents: in the Atlantic to 38°N and 39°S; in the western Pacific to 26°N. Eastern Atlantic: from about 4°N to about 13°S, with some records at about 20°N, but absent over the Mauritanian Upwelling Region.
 Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 15-17; Anal spines: 0-0; Anal soft rays: 16-18
 Biology:  Oceanic species occurring between 375-750 m during the day and between 40-225 m at night. Reach sexual maturity at 7,6 cm (Ref. 47377).
 IUCN Red List Status:   (Ref. 96402)
 Threat to humans:  harmless
 Country info:   
 

 Entered by: Sa-a, Pascualita - 22.02.96
 Modified by: Bailly, Nicolas - 15.07.13

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