Diplophos taenia Günther, 1873
Pacific portholefish
Diplophos taenia
photo by Dubosc, J.

Family:  Gonostomatidae (Bristlemouths)
Max. size:  27.6 cm SL (male/unsexed)
Environment:  bathypelagic; marine; depth range 0 - 1594 m
Distribution:  Cosmopolitan. Eastern Atlantic: Portugal (Ref. 4769) south to Gulf of Guinea (Ref. 4463); Namibia and South Africa (Ref. 3991). Northwest Atlantic: Canada (Ref. 5951). Western Atlantic and Indo-Pacific: in tropical and subtropical waters. Eastern Pacific: California Current region (Ref. 35800); Chile (Ref. 9068). South China Sea (Ref.74511).
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 10-11; Anal spines: 0-0; Anal soft rays: 59-72; Vertebrae: 89-99. Black-brown dorsally, flanks silver; fins colorless (Ref. 3991). Branchiostegal rays: 12-14 (Ref. 35800). Slender form, high anal-ray and photophore counts (Ref. 37473).
Biology:  Mesopelagic at 15-650 m (Ref. 58302). Exhibit diel vertical migrations, juveniles and adults found at 300-800 m by day and often reach the surface at night (Ref. 4769). Early stages at 450-610m (Ref. 035800). Oviparous, with planktonic eggs and larvae (Ref. 35800).
IUCN Red List Status: Least Concern (LC); Date assessed: 22 May 2013 Ref. (126983)
Threat to humans:  harmless

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