Monia (genus)

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Monia
Monia nobilis

Monia nobilis

Systematics
Subclass : Autolamellibranchiata
Subclass : Pteriomorphia
Order : Pectinida
Superfamily : Anomioidea
Family : Saddle Clams (Anomiidae)
Genre : Monia
Scientific name
Monia
Gray , 1850

Monia is a clam genus of the family of anomiidae (Anomiidae) in order Pectinida .

features

The housings of the species of the genus Monia are round with a diameter of up to 4 centimeters. They are flat, unequal and, with the right flap facing down, usually attached to a hard substrate with byssus . The vertebra sits in the middle a little away from the dorsal margin. Usually the lower right flap is translucent and thin, the upper left flap firm. The dorsal and ventral margins are irregular. The substrate can also trace itself to the shape of the upper left flap. The right flap has an almost completely enclosed, approximately triangular bay on the dorsal margin through which the byssus passes. The byssus muscle is simple and not fused with the sphincter muscle; In the left valve there are therefore two muscle impressions that are separated from each other.

Geographical distribution and habitat

The types of the genus are distributed worldwide. They come from the boreal and Australian marine regions to the tropics.

They live with byssus attached to the hard substrate from shallow water to greater depths (up to approx. 1400 m).

Taxonomy

The genus Monia was established in 1850 by John Edward Gray . The type species is Anomia zelandica Gray, 1843. According to the World Register of Marine Species, the following species are included in the genus :

supporting documents

literature

  • Rudolf Kilias: Lexicon marine mussels and snails. 2nd edition, 340 pp., Verlag Eugen Ulmer, Stuttgart 1997 ISBN 3-8001-7332-8 (p. 202)
  • Raymond C. Moore : Treatise on Invertebrate Paleontology. Part N: Mollusca. 6, Bivalvia. Vol. 2. The University of Kansas et al., Boulder CO 1969
  • 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. 61)

Individual evidence

  1. ^ John Edward Gray: On the species of Anomiadae. Proceedings of the Zoological Society of London, 17: 113-124, London 1849 (1850) Online at www.biodiversitylibrary.org (p. 121)
  2. ↑ World Register of Marine Species: Monia Gray, 1850

Web links

Commons : Monia Gray, 1850  - Collection of Images, Videos, and Audio Files