North Pacific: off Japan, throughout the California Current region (Ref. 35934) to the Aleutian Islands (Ref. 265); including Sea of Okhotsk and Bering Sea (Ref. 43939).
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm Max length : 32.0 cm SL hane/ej könsbestämd; (Ref. 43939)
Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 10 - 12; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 16 - 19; Ryggkotor: 58 - 61. Adipose fin small (Ref. 6885). Dark on head, body and fins; peritoneum, gills, and mouth cavity black (Ref. 6885). Branchiostegal rays: 10 (Ref. 35934).
Larger individuals apparently occur in deeper water than small ones (Ref. 4525). Synchronous hermaphrodites (Ref. 35934). Oviparous, with planktonic larvae (Ref. 35934). Juveniles makes nocturnal vertical migrations to the epipelagic zone (Ref. 43939). A planktivorous fish feeding mainly copepods and euphausiids (Ref. 35945).
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)