original description
Arai, M.N. & A. Brinckmann-Voss, 1980. Hydromedusae of British Columbia and Puget Sound. Can. Bull. Fish. aquat. Sci. 204 : 1-192.
page(s): 62 [details] Available for editors [request]
basis of record
Bouillon, J.; Gravili, C.; Pagès, F.; Gili, J.-M.; Boero, F. (2006). An introduction to Hydrozoa. Mémoires du Muséum national d'Histoire naturelle, 194. Muséum national d'Histoire naturelle: Paris, France. ISBN 2-85653-580-1. 591 + 1 cd-rom pp. (look up in IMIS) [details]
additional source
RAMS Hydrozoa checklist from Dr. Álvaro L. Peña Cantero (look up in IMIS) [details]
From editor or global species database
Diagnosis Hydroid: polyps small (<0.2 mm), solitary; 3-8, generally 4 distal whorls of capitate tentacles, with a few scattered nematocysts along their length; medusa buds single, just below tentacles.
Medusa, with four or eight radial canals, a low peduncle, and distinct interradial or interradial and perradial pockets in the jelly above the base of the manubrium; red band on the manubrium, gonads extending out from the manubrium as lobes below the upper portions of the radial canals, but without mesenteries; mouth with lips lined by a row of sessile nematocyst clusters; four perradial hollow tentacles, or four perradial tentacles and four interradial single tentacles, or groups of hollow tentacles; cylindrical marginal bulbs, each with an abaxial ocellus (modified after Toshino et al., 2022). [details]
From editor or global species database