Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 150 - 250 m (Ref. 83439). Temperate
Northwest Pacific: known only from the Sea of Japan, Sea of Okhotsk, and Pacific coast of Hokkaido.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 10.0 cm SL male/unsexed; (Ref. 559)
Dorsal spines (total): 7; Dorsal soft rays (total): 10 - 12; Anal soft rays: 11 - 13. This species is distinguished by the following set of characters: simple nasal spines; almost straight uppermost preopercular spine with 2 small cusps dorsally and barbed posterior cusp; elongated first dorsal fin in males; lateral line reaching almost base of caudal fin; with ventral lateral cirrus (Ref. 83439).
Usually occurs on sandy-muddy bottoms (Ref. 83439).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
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