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Argyropelecus lychnus Garman, 1899 Tropical hatchetfish |
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photo by
Ramjohn, D.D. |
| Family: | Sternoptychidae (Marine hatchetfishes), subfamily: Sternoptychinae | |||
| Max. size: | 7 cm TL (male/unsexed) | |||
| Environment: | bathypelagic; marine; depth range 150 - 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). Minimum depth is from Ref. 82347. | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 16 July 2019 Ref. (130435) | |||
| Threat to humans: | harmless | |||