Polymetme corythaeola (Alcock, 1898)
Rendezvous fish
Polymetme corythaeola
photo by Serrano, A.

Family:  Phosichthyidae (Lightfishes)
Max. size:  26 cm SL (male/unsexed)
Environment:  benthopelagic; marine; depth range 165 - 800 m
Distribution:  Indo-West Pacific: Gulf of Aden and East Africa to Japan and the Tasman Sea (Ref. 41740). Also Atlantic and eastern Pacific.
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 10-14; Anal spines: 0-0; Anal soft rays: 27-34; Vertebrae: 43-45. Dark dorsum, flanks silver; black pigment on outer caudal rays (Ref. 3988). Two rows of photophores on the body (Ref. 37473). Pyloric caeca 7-8; photophores above anal fin 15-17 (Ref. 41740).
Biology:  Benthopelagic off continental and island slopes and sea-mounts (Ref. 4778). Probably does not exhibit diel vertical migrations (Ref. 4778). Minimum depth reported from Ref. 4778.
IUCN Red List Status: Least Concern (LC); Date assessed: 16 July 2019 Ref. (130435)
Threat to humans:  harmless


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