Eumicrotremus orbis (Günther, 1861)
Pacific spiny lumpsucker
Eumicrotremus orbis
photo by Tibbatts, B.

Family:  Cyclopteridae (Lumpfishes), subfamily: Eumicrotreminae
Max. size:  18 cm TL (male/unsexed); max.weight: 100.0 g
Environment:  demersal; marine; depth range 0 - 575 m
Distribution:  North Pacific: Chukchi Sea and Sea of Okhotsk to Muroran, Hokkaido (Japan), Amchitka Island in the Aleutian chain and Puget Sound, Washington, USA.
Diagnosis:  Dorsal spines (total): 6-7; Dorsal soft rays (total): 9-11; Anal spines: 0-0; Anal soft rays: 8-10. Caudal narrow and rounded; pectorals with a long base extended to ventral surface, all rays slightly exserted, ventral ones more so; pelvic fins with rays ossified and modified to support all of a large adhesive disc with thickened fringed margin (Ref. 6885). Light to dark green, sometimes light brown dorsally; light brown or plum ventrally; lips lavender; tubercles in males dull orange or reddish brown; tubercles in females are larger and more numerous and pale green (Ref. 6885).
Biology:  Commonly inshore; often found at low tide attached to rocks (Ref. 2850).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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