Bumpy scallop
| Bumpy scallop | ||||||||||||
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Talochlamys pusio |
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| Scientific name | ||||||||||||
| Talochlamys pusio | ||||||||||||
| ( Linnaeus , 1758) |
The humped scallop ( Talochlamys pusio ) (syn .: Chlamys distorta and Hinnites distorta ) is a type of mussel from the family of scallops (Pectinidae).
features
The unevenly hinged housings are up to 50 millimeters in size (high). Until it is permanently attached and cemented to a solid base, the housing is egg-shaped with a comparatively small umbonal vortex of 82 to 90 °. By the time cementing begins, the housings are 10 to 20 millimeters (high). The right flap is slightly more arched than the left flap. The front ears are larger and longer than the back ears. The front ear of the right flap has a deep slot for the byssus. The ctenolium is well developed. After the cementation on the solid base, the housing continues to grow irregularly. Bytes generation is stopped.
The shell is thick and tight. The ornamentation (before cementation) consists of numerous, thin, radial ribs that multiply to around 50 as they grow. The ribs are unequal in thickness, secondary ribs are narrower. This results in the image of alternating strong ribs on the edge of the housing. After cementation, the number of ribs increases further to around 70. The ribs also become more irregular towards the completely irregular edge of the housing. The ribs are covered with fine thorns. The ears also have radial ribs, which are often covered with large scales. The color varies from white to yellow to red-brown, with patterns of dots, spots and zigzags.
Geographical distribution, habitat and way of life
The distribution area of the humped scallop extends from Norway and Iceland to North Africa and the Mediterranean .
Talochlamys pusio occurs in the tidal range up to about 100 meters water depth (according to Fritz Nordsieck up to 2285 meters water depth). The juvenile animals are first attached to hard substrates with byssus threads. Later the right flap is cemented to the solid ground and the byssus connection is loosened.
Taxonomy
The taxon was set up in 1758 by Carl von Linné as Ostrea pusio . It used to be placed under the genera Hinnites , Pecten or Crassadoma . Today the species is generally assigned to the genus Talochlamys Iredale, 1929. The MolluscaBase lists some synonyms: Chlamys distorta (da Costa, 1778),? Hinnites megadesma Coen, 1930, Ostrea miniata Born, 1778, Ostrea sinuosa Gmelin, 1791, Pecten crotilus Reeve, 1853, Pecten irregularis Deshayes, 1832, Pecten isabellae MacGillivray, 1843, Pecten senticosus Jeffreys, 1879 and Pecten spinosus Brown, 1827.
supporting documents
literature
- Paul Chambers: Channel Island Marine Molluscs: An Illustrated Guide to the Seashells of Jersey, Guernsey, Alderney, Sark and Herm. 321 pp., Charonia Media, 2008, ISBN 978-0-9560655-0-6 , p. 220 (as Chlamys distorta )
- Peter J. Hayward, John S. Ryland: Handbook of the Marine Fauna of North-West Europe. X, 800 pp., University Press, Oxford 2017, ISBN 978-0-19-954944-3 , p. 561.
- Fritz Nordsieck : The European sea shells (Bivalvia). From the Arctic Ocean to Cape Verde, the Mediterranean Sea and the Black Sea. 256 p., Gustav Fischer Verlag, Stuttgart 1969 (p. 54 as Hinnites distortus )
On-line
Individual evidence
- ^ Theodor CH Cole: Dictionary of Invertebrates / Dictionary of Invertebrates: Latin-German-English. Springer Spektrum, Berlin 2017, ISBN 978-3-662-52869-3 , p. 67. Preview on Google Books
- ↑ Talochlamys pusio (Linnaeus, 1758) www.biodiversidadvirtual.org
- ^ Carl von Linné: Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima, reformata. Pp. 1-824, Holmia / Stockholm, Salvius, 1758. Online at www.biodiversitylibrary.org (p. 698).
- ↑ a b MolluscaBase: Talochlamys pusio (Linnaeus, 1758)
