Common egg shell
| Common egg shell | ||||||||||||
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Common egg shell ( Laevicardium laevigatum ) |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Laevicardium laevigatum | ||||||||||||
| ( Linnaeus , 1758) |
The common egg shell ( Laevicardium laevigatum ) is a species of shell from the family of cockles (Cardiidae), which belongs to the order Cardiida .
features
The housings have a maximum diameter of up to 5 cm. The outer shape is clearly ovate oval (hence the name) and taller than long. The shell is relatively thin compared to other types of cockles. It has no radial folds like most other members of the Cardiidae family. The surface has growth strips that are crossed by up to 60 very fine, radial strips. The periostracum is brownish to yellowish, e.g. Partly also white; the surface shines. The inside of the flaps is partly yellow in color.
Way of life, occurrence and distribution
The common egg shell lives in shallow water, buried shallowly in the sandy- silty sediment . It occurs from the southeastern states of the USA , across the Gulf of Mexico and the Caribbean to Brazil . It is extremely common in many places in its area of distribution.
Reproduction
While most of the other mussel species, which live in tropical latitudes and are not subject to seasonal fluctuations, reproduce all year round, the common conch shows an annual reproductive cycle.
literature
- R. Tucker Abbott and S. Peter Dance: Compendium of Seashells. 411 pp. Odyssey Publishing, El Cajon, California ISBN 0-966-1720-0-0