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MarBEF Data System |
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WoRMS taxon details
original description
Prevot, E., 1959. Morphologie et évolution des structures tentaculaires chez les hydraires Gymnoblastes Capitata. Recl Trav. Stn mar. Endoume 2917 : 91-126.
page(s): 36 [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]
From editor or global species database
Diagnosis Hydroid colonies either stolonal or erect; hydrorhiza creeping; hydrocauli long, unbranched or sparingly branched, with terminal hydranths; perisarc thin, reaching hydranth base or stopping at the insertion with the hydrorhiza; hydranth pyriform, with bulbous base and proboscis-like hypostome; no oral tentacles, but single, trifid or dicapitate tentacles in one to five whorls around broadest part of body; gonophores arising above or among tentacles as free medusae or sessile eumedusoids.
Gonophores eumedusoid or free medusa with thick bell-shaped or conical umbrella; apical projection, when present, conical or dome-shaped, with thick mesoglea and broad apical chamber; manubrium flask-shaped, quadrate, or cruciform, narrowing towards the mouth, the latter simple, round or cruciform; two or four tentacles with adaxial, evenly distributed, spirally arranged or absent nematocyst clusters, with a terminal, ellipsoid or spherical capitation; marginal bulbs large, clasping exumbrella, each with adaxial expansion; ocelli abaxial, not always present in newly liberated medusae; gonads adradial, confluent in perradii in mature specimens.
[details]
From editor or global species database
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