The Hydrozoa: a new classification in the light of old knowledge
Bouillon, J.; Boero, F. (2000). The Hydrozoa: a new classification in the light of old knowledge. Thalassia Salent. 24: 3-45
In: Thalassia Salentina. Stazione di Biologia Marina del Salento: Lecce. ISSN 0563-3745; e-ISSN 1591-0725, more
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| Keyword |
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| Author keywords |
Cnidaria, Hydrozoa, Automedusa, Hydroidomedusa, Polypodiozoa, life cycles, development, classification, phylogeny |
| Abstract |
The Hydrozoa, on the basis of embryological, developmental and morphological features, are considered as a superclass of the phylum Cnidaria comprising three classes: the Automedusa (with the subclasses: Actinulidae, Narcomedusae and Trachymedusae), characterised by direct development of the planula into a medusa; the Hydroidomedusa (with the subclasses: Anthomedusae, Laingiomedusae, Leptomedusae, Limnomedusae, and Siphonophorae), characterised by a polyp stage budding medusae through a medusary nodule; and the Polypodiozoa, with complex endocellular parasitic life cycles. |
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