original description
Hincks, Th., 1868. A history of the British hydroid zoophytes.London, John van Voorst. Volume 1 : i-lxviii + 1-338, volume 2: pls 1-67., available online at https://www.biodiversitylibrary.org/page/46798707
page(s): 220 [details]
context source (Hexacorallia)
Fautin, Daphne G. (2013). Hexacorallians of the World. (look up in IMIS) [details]
basis of record
Bouillon, J.; Boero, F. (2000). Synopsis of the families and genera of the Hydromedusae of the world, with a list of the worldwide species. <i>Thalassia Salent. 24</i>: 47-296 (look up in IMIS) [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Diagnosis Hydroid colony usually erect and branching, rarely stolonal, arising from a creeping hydrorhiza; hydrotheca sessile or pedicellate (on socalled hydrophore), shallow; hydranth much larger than hydrotheca, often robust, with or without intertentacular web, hydrothecal rim usually even, hydrotheca lacking operculum; renovation common; bottom of hydrotheca formed by concentric diaphragm, above diaphragm a ring of small knobs; endoderm of hydranths differentiated into proximal digestive part and distal non digestive pert, nematophores, nematothecae and nematodactyls present or absent; gonophores fixed or rarely free sporosacs; gonothecae solitary or grouped into a glomulus, infrequently with naked gonophores. [details]
From editor or global species database