Argyropelecus lychnus Garman, 1899
Tropical hatchetfish
Argyropelecus lychnus
photo by Ramjohn, D.D.

 Family:  Sternoptychidae (Marine hatchetfishes), subfamily: Sternoptychinae
 Max. size:  5.9 cm TL (male/unsexed)
 Environment:  bathypelagic; depth range 200 - 700 m
 Distribution:  Western Pacific: Papua New Guinea (Ref. 6993) and New Zealand (Ref. 5755). Eastern Pacific: southern British Columbia, Canada to California, USA and farther south (Ref. 2850).
 Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 9-9; Anal spines: 0-0; Anal soft rays: 12-12; Vertebrae: 35-37. Branchiostegal rays: 10 (Ref. 35838). Lower preopercular spine downward and curved forward, upper preopercular spine curved outward. Two postabdominal spines directed ventrally (Ref. 37473).
 Biology:  Copepods have been found in the food items consumed by this species (Ref. 6885). Oviparous, with planktonic eggs and larvae (Ref. 35838).
 IUCN Red List Status: Not Evaluated  (Ref. 96402)
 Threat to humans:  harmless
 Country info:   
 

 Entered by: Torres, Armi G. - 30.06.94
 Modified by: Luna, Susan M. - 25.09.00

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