Cap snails
| Cap snails | ||||||||||||
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Housing of Capulus ungaricus |
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| Systematics | ||||||||||||
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| Scientific name of the superfamily | ||||||||||||
| Capuloidea | ||||||||||||
| Fleming , 1822 | ||||||||||||
| Scientific name of the family | ||||||||||||
| Capulidae | ||||||||||||
| Fleming , 1822 |
The cap snails or cap snails ( Capulidae ) are a family of small to large snails from the group of Caenogastropoda with cap-shaped shells, which can be found in all large oceans, especially at greater depths.
features
The exclusively marine cap snails have cap-shaped to turret-shaped shells which, depending on the species, can be a few millimeters to about 5 cm in size and are covered by a thick, often prickly periostracum . The animals have no operculum.
The Capulidae have a long, mobile pseudoproboscis ( false proboscis ) formed by the propodium with a groove on the back, with which the snails collect food particles.
The cap snails live as filter feeders or by grazing on detritus , algae and microorganisms on the substrate. Some species live as commensals on the shells of filtering molluscs or tube worms . Since they can withdraw considerable amounts of the food particles that have swirled in from the host animals, they are also regarded as ectoparasites ( kleptoparasites ).
Genera
The following genera belong to the Capulidae family:
- Ariadnaria Habe, 1961
- Capulus Montfort, 1810
- Cerithioderma Conrad, 1860
- Ciliatotropis Golikov, 1986
- Discotrichoconcha Powell, 1951
- Hyalorisia Dall, 1889
- Icuncula Iredale, 1924
- Lippistes Montfort, 1810
- Neoiphinoe Habe, 1978
- Separatista Gray, 1847
- Sirius Hedley, 1900
- Torellia Jeffreys, 1867
- Trichamathina Habe, 1962
- Trichosirius Finlay, 1926
- Trichotropis Broderip & GB Sowerby I, 1829
- Turritropis Got, 1961
- Zelippistes Finlay, 1926
literature
- Peter J. Hayward, John S. Ryland: Handbook of the Marine Fauna of North-West Europe. Oxford University Press, Oxford 2017. p. 490.
Web links
- Family Capulidae - cap snails - Fischhaus Zepkow