Limida
| Limida | ||||||||||||
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Lima sp. |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Limida | ||||||||||||
| Waller , 1978 |
The Limida are an order of the mussels (Bivalvia), which belong to the infraclass Pteriomorphia within the Autolamellibranchiata . It is a group of mussels found exclusively in the sea. The oldest Limida are known from the Lower Carboniferous .
characterization
The housings of the Limida are often oval and unevenly hinged. The shell is exclusively aragonitic with superimposed calcitic layers. Typical are the small "ears" and the lack of a byssus slot . The lock bar is reduced and the lock is toothless or (pseudo-) taxodont . The ligament is external. The anterior sphincter is reduced, i.e. monomyar . The foot is usually large and strong. What is remarkable about this group is the formation of coat tentacles and "eyes" on the edge of the coat.
Way of life
The Limida are exclusively marine mussels, which are mostly attached to the substrate with the help of organic byssus . Some recent representatives can generate recoil by jerking the two flaps of the housing and thus swim freely over short distances.
Systematics
The Limida consist of a superfamily: Limoidea d'Orbigny , 1846 with the single family Limidae d'Orbigny , 1846
Some example genera:
Some fossil genera:
swell
- ↑ Limidae at Integrated Taxonomic Information System (ITIS)
- ^ Raymond C. Moore : Treatise on Invertebrate Paleontology , Part N, Mollusca 6, Bivalvia (Volume 1). The University of Kansas & Geological Society of America, Boulder, Colorado, 1969.
literature
- Michael Amler, Rudolf Fischer & Nicole Rogalla: Mussels . Haeckel library, volume 5. Enke Verlag, Stuttgart 2000 ISBN 3-13-118391-8 .
- Rüdiger Bieler & Paula M. Mikkelsen: Bivalvia - a look at the branches . Zoological Journal of the Linnean Society, 148: 223-235, London 2006.
