Hydrozoa taxon details
original description
Agassiz, L. (1849). On the Naked-eyed Medusae of the Shores of Massachusetts in their perfect state of development (Contributions to the Natural History of the Acalephae of North America Part 1. <em>Memoirs of the American Academy of Arts and Sciences (n. s.).</em> 4: 221-312, pls 1-8., available online at https://www.biodiversitylibrary.org/page/14226050 page(s): 289 [details]
context source (Hexacorallia)
Fautin, Daphne G. (2013). Hexacorallians of the World. (look up in IMIS) [details]
basis of record
van der Land, J.; Vervoort, W.; Cairns, S.D.; Schuchert, P. (2001). Hydrozoa, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 112-120 (look up in IMIS) [details]
redescription
Schuchert, P. (2007). The European athecate hydroids and their medusae (Hydrozoa, Cnidaria): Filifera part 2. <em>Revue suisse de Zoologie.</em> 114: 195-396., available online at https://www.biodiversitylibrary.org/page/41281106 page(s): 234 [details]
From editor or global species database
Diagnosis Hydroids, solitary, small, club-shaped, with pedal disk, hydrocaulus not distinctly delimited from hydranth body, large medusa buds in basal region.
Medusa with four clusters of marginal tentacles, in each cluster a median pair of clubshaped or capitate tentacles flanked by a number of simple, filiform tentacles; with adaxial ocelli; with four perradial dichotomously branched tentacles; manubrium with four radial lobes extending outwards along the radial canals; gonads on these lobes. [details]
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