Clathrozoella
| Clathrozoella | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name of the family | ||||||||||||
| Clathrozoellidae | ||||||||||||
| Peña Cantero , Vervoort & Watson , 2003 | ||||||||||||
| Scientific name of the genus | ||||||||||||
| Clathrozoella | ||||||||||||
| Stechow , 1921 |
Clathrozoella is a genus of the Hydrozoa (Hydrozoa). It is the only genus in the Clathrozoellidae family . Four types are currently known.
features
The hydroid polyps are colonial and form upright, branched or unbranched canes that are formed by the addition of successive, tubular pseudohydrothecas. The hydroid polyps are polymorphic; but no medusa stage is formed. The pseudohydrotheca is formed by fused, stolone-like Perisarc tubes that have a core of Coenosarc . Each pseudohydrotheque sits on the lower pseudohydrotheque. The pseudohydrotheques sitting on top of each other have no direct contact with one another. In each pseudohydrotheque there is only one sessile polyp with no notable stalk. The cone of the mouth is surrounded by a ring of filiform tentacles. The gonophores are sessile spore sacs that grow directly from the bottom of the pseudohydrotheque. So there are no sexual polyps. The cnidome consists of microbasic mastigophores, microbasic euryteles, desmonemes and haplonemes.
Geographical occurrence
The four species described so far come from Antarctic waters, the Drake Strait , Stewart Island (New Zealand) and Low Island (Tasmania, Australia). They live in deeper water (previously 128 m to 3093 m).
species
- Clathrozoella abyssalis Peña-Cantero, Vervoort, & Watson, 2003
- Clathrozoella bathyalis Peña-Cantero, Vervoort, & Watson, 2003
- Clathrozoella drygalskii (Vanhöffen, 1910)
- Clathrozoella medeae Peña-Cantero, Vervoort, & Watson, 2003
swell
literature
- Marymegan Daly, Mercer R. Brugler, Paulyn Cartwright, Allen G. Collin, Michael N. Dawson, Daphne G. Fautin, Scott C. France, Catherine S. McFadden, Dennis M. Opresko, Estefania Rodriguez, Sandra L. Romano & Joel L. Stake: The phylum Cnidaria: A review of phylogenetic patterns and diversity 300 years after Linnaeus. Zootaxa, 1668: 127-182, Wellington 2007 ISSN 1175-5326 Abstract - PDF
- Alavaro Luis Peña Cantero, Willem Vervoort and JeanetteE. Watson: On Clathrozoellidae (Cnidaria, Hydrozoa, Anthoathecatae), a new family of rare deep-water leptolids, with the description of three new species. Zoological negotiation Leiden, 345: 281-296, Leiden 2003 ISSN 0024-1652 PDF