Jassa marmorata (Holmes 1903)
Gnathopod 2 is subchelate in males. The anterior lobe of coxa 5 is at least three times larger than the posterior lobe (photo), and coxa 4 is deeper than it is long. Uropod 3 possesses two blunt rami; the outer ramus bears irregular teeth that are proximal to a single, heavy, distal hooked spine ramus (photo).
Lives from the low intertidal to 30m depth. Found in fouling communities on floats and pilings, though normally a marine and estuary species.
Status in BC
Found in harbours of Asia, Europe, New England, and the northeast Pacific, but status has yet to be determined.