Nomenclature
original description
Allman, G. J. (1859). Notes on the hydroid zoophytes. <em>Annals and Magazine of Natural History (3).</em> 4: 367-370., available online at https://www.biodiversitylibrary.org/page/2356509
page(s): 370 [details]
original description
(of Heterocordyle Allman, 1864) Allman, G. J. 1864c. On the construction and limitation of genera among the Hydroida. - Annals and Magazine of Natural History (3) 13: 345-380., available online at https://www.biodiversitylibrary.org/page/22217607
page(s): 365 [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]
Taxonomy
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.
page(s): 241 [details] 
Other
context source (Hexacorallia)
Fautin, Daphne G. (2013). Hexacorallians of the World. (look up in IMIS) [details]
additional source
Leloup, E. (1952). Coelentérés [Coelenterata]. <em>Institut royal des Sciences naturelles de Belgique: Brussels, Belgium.</em> 283 pp. (look up in IMIS) [details]
Present
Inaccurate
Introduced: alien
Containing type locality
From editor or global species database
Diagnosis Colonial hydroids, branched or not, perisarc not ensheathing bases of tentacles; hydranth with one whorl of filiform tentacles; gonophores on specialized blastostyles replacing a hydranth, numerous, released as swimming ciliated sporosacs provided with one or two tentacle-like processes at their proximal end (tentaculoids). [details]
Taxonomic remark It is unclear if this genus belongs to the Bougainvilliidae, Pandeidae or any other similar family is also possible. The position of the gonophores on the gonozooids is untypical. [details]
From editor or global species database
Unreviewed