Trunk shells

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Trunk shells
Saw tooth (Donax vittatus)

Saw tooth ( Donax vittatus )

Systematics
Subclass : Heterodonta
Euheterodonta
Superordinate : Imparidentia
Order : Cardiida
Superfamily : Tellinoidea
Family : Trunk shells
Scientific name
Donacidae
Fleming , 1828

The suitcase shells (Donacidae), even butt or cockles are a family of shells from the order Cardiida . The oldest members of the family come from the Aptium ( Lower Cretaceous ).

features

The small to medium-sized, mostly flat, flat housings are rounded-triangular, elongated-elliptical or also rounded-wedge-shaped in outline. They are unequal, the vertebrae sit slightly behind the center line in relation to the length of the case. The ventral margin is almost straight, the dorsum almost right-angled. The lock has two main teeth in both flaps. The brown ligament is small. In addition, max. One anterior and one posterior lateral teeth each. The ornamentation consists mainly of fine growth lines and fine radial lines. The surface line is deeply indented.

Geographical distribution and habitat

The trunk shells are common worldwide. Most species live in warm and tropical seas. They prefer the shallow water from the intertidal zone to a depth of around 60 meters. They can quickly bury themselves back in if they are washed away by the current or surf.

Taxonomy

The taxon was established by John Fleming in 1828 . The family is universally recognized.

supporting documents

literature

  • Fritz Gosselck, Alexander Darr, Jürgen HJ Jungbluth, Michael Zettler: common names for mollusks of the sea and brackish water in Germany. Mollusca, 27 (1): 3-32, 2009 PDF
  • Fritz Nordsieck : The European sea shells (Bivalvia). From the Arctic Ocean to Cape Verde, the Mediterranean Sea and the Black Sea. 256 pages, Gustav Fischer Verlag, Stuttgart 1969
  • Guido Poppe. Yoshihiro Goto: European Seashells Volume 2 (Scaphopoda, Bivalvia, Cephalopoda) . 221 p., Verlag Christa Hemmen, Wiesbaden 1993 (2000 unc. Reprint), ISBN 3925919104 (p. 126/7)
  • Rainer Willmann: Mussels of the North and Baltic Seas. 310 p., Neumann-Neudamm, Melsungen 1989 ISBN 3-7888-0555-2 (p. 146/7)

Individual evidence

  1. ↑ Yasuo Kondo and Shin-ichi Sano: Origination of extant heteroconch families: Ecological and environmental patterns in post-Paleozoic bivalve diversification. Palaeontological Research, 13: 39-44, Tokyo 2009 doi : 10.2517 / 1342-8144-13.1.039
  2. ↑ John Fleming: A history of British animals, exhibiting the descriptive characters and systematic arrangement of the genera and species of quadrupeds, birds, reptiles, fishes, Mollusca, and Radiata of the United Kingdom; including the indigenous, extirpated, and extinct kinds, together with periodical and occasional visitants. Pp. I-XXXII, 1-565, Edinburgh, Bell & Bradfute, 1828 Online at www.biodiversitylibrary.org (p. 433).
  3. ↑ MolluscaBase: Donacidae Fleming, 1828

Web links

Commons : Donacidae  - Collection of images, videos and audio files