The bougainvillid hydroid Clavopsella michaeli produces club-shaped female gonophores each bearing up to eight large eggs. These eggs are covered by a single layer of isolated cnidocytes in close contact with the oocyte membrane. These cnidocytes have fully‐developed microbasic eurytele cnidocysts always in a functional position, with the cnidocil apex pointed outwards. The cnidocysts constitute a defensive ≪stinging armor≫ protecting the large eggs.
Titolo: | The «stinging» egg of clavopsella michaeli (Berrill) (hydrozoa, cnidaria) |
Autori: | PIRAINO, Stefano (Corresponding) |
Data di pubblicazione: | 1992 |
Rivista: | |
Abstract: | The bougainvillid hydroid Clavopsella michaeli produces club-shaped female gonophores each bearing up to eight large eggs. These eggs are covered by a single layer of isolated cnidocytes in close contact with the oocyte membrane. These cnidocytes have fully‐developed microbasic eurytele cnidocysts always in a functional position, with the cnidocil apex pointed outwards. The cnidocysts constitute a defensive ≪stinging armor≫ protecting the large eggs. |
Handle: | http://hdl.handle.net/11587/435457 |
Appare nelle tipologie: | Articolo pubblicato su Rivista |
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