Dreissena rostriformis distincta

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Dreissena rostriformis distincta
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Subclass: Heterodonta
Order: Myida
Family: Dreissenidae
Genus: Dreissena
Species:
D. rostriformis
Subspecies:
D. r. distincta
Trinomial name
Dreissena rostriformis distincta
(Andrusov, 1897)

Dreissena rostriformis distincta is a (possible) subspecies of freshwater mussel, an aquatic bivalve mollusk in the family Dreissenidae. It was originally described in 1897 as a variety of D. rostriformis by Andrusov (Andrusov, 1897: 273-276, pl. 14, figs. 18-24.)

Aquatic animal under water animals

An aquatic animal is an animal, either vertebrate or invertebrate, which lives in the water for most or all of its lifetime. Many insects such as mosquitoes, mayflies, dragonflies and caddisflies have aquatic larvae, with winged adults. Aquatic animals may breathe air or extract oxygen that dissolved in water through specialised organs called gills, or directly through the skin. Natural environments and the animals that live in them can be categorized as aquatic (water) or terrestrial (land). This designation is paraphyletic.

The Dreissenidae are a family of small freshwater mussels, aquatic bivalve molluscs. They attach themselves to stones or to any other hard surface using a byssus. The shells of these bivalves are shaped somewhat like those of true mussels, and they also attach themselves to a hard substrate using a byssus, however this group is not at all closely related to true mussels, being more closely related to the venus clams (Veneridae).

The type locality was numerous localities in the Volga River, Caspian, Black and Marmara seas (both Recent and fossil). [1]

However, the exact taxonomy of the species within the genus Dreissensa is uncertain. As Kantor et al. commented, "...the Russian specialists on fresh-water molluscs appeared to be “splitters” comparing with their western colleagues. This sometimes leads to extreme differences in opinion on species number and taxonomy of some groups." [2]

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References

  1. ↑ Kantor, Y.I., M.V. Vinarski, A.A. Schileyko & A.V. Sysoev. 2010. Catalogue of the Continental Mollusks of Russia and Adjacent Territories: 330 pp. pdf Accessed 2014-6-24
  2. ↑ Kantor, Y.I., M.V. Vinarski, A.A. Schileyko & A.V. Sysoev. 2010. Catalogue of the Continental Mollusks of Russia and Adjacent Territories: 330 pp. pdf Accessed 2014-6-24


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