Teleostei (teleosts) >
Perciformes/Zoarcoidei (Eelpouts and pricklebacks) >
Bathymasteridae (Ronquils)
Etymology: Bathymaster: Greek, bathys = deep + Greek, master, -eros = somebody that research (Ref. 45335).
More on author: Cope.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 0 - 825 m (Ref. 6793), usually 35 - 380 m (Ref. 50550). Polar
Arctic, Northwest to Northeast Pacific: East Siberian Sea to eastern Kamchatka and the Commander Islands, Russian and Washington, USA (Ref. 6793); including Hokkaido, Japan (Ref. 37422) and the Sea of Okhotsk (Ref. 48889).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 38.0 cm TL male/unsexed; (Ref. 48889); common length : 30.0 cm TL male/unsexed; (Ref. 31682); max. published weight: 370.00 g (Ref. 31682); max. reported age: 9 years (Ref. 31682)
Dorsal spines (total): 0; Dorsal soft rays (total): 47; Anal spines: 0; Anal soft rays: 32 - 34. Caudal fin narrow, gently rounded (Ref. 6885). Brown on the dorsal surface with dark markings, lighter ventrally with yellow to orange streaks; yellow on head in some areas and yellow mottling on fins; black blotch on anterior part of dorsal fin for first 3 to 5 rays, conspicuous; pelvic fins dusky and some dark marks on other fins; eyes reputed to be blue (Ref. 6885).
Body shape (shape guide): elongated.
Adults are found offshore on soft bottoms (Ref. 2850); and deeper (to 300 m) than other ronquils (Ref. 48889). Reaches more than 38 cm (Ref. 48889).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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