Caspian lamprey
Caspian lamprey | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Infraphylum: | Agnatha |
Class: | Hyperoartia |
Order: | Petromyzontiformes |
Family: | Petromyzontidae |
Genus: | Caspiomyzon |
Species: | C. wagneri
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Binomial name | |
Caspiomyzon wagneri (
Kessler , 1870) | |
Synonyms[2] | |
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The Caspian lamprey, Caspiomyzon wagneri, is a
Taxonomy
Formerly thought to be the only member of the genus
Description
The Caspian lamprey is a slim-bodied, eel-like fish that grows to a length of about 40 cm (16 in). The longest recorded specimen was 55 cm (22 in) long and weighed 206 g (7.3 oz). Like other lampreys, it has no jaws, but it has a round oral disc surrounding the mouth. Inside this it has several radiating rows of tiny, backward-facing teeth. There is a single nostril near the eyes. There are no gill covers and the seven gill openings are visible just behind the head. The fish has no scales or paired fins, but has two elongated dorsal fins, the hindmost of which nearly joins onto the small tail fin. The Caspian lamprey is a silvery-grey colour.[4]
Distribution
The Caspian lamprey is an
Status
The Caspian lamprey is listed as "
References
- ^ . Retrieved 12 November 2021.
- PMID 25543675.
- ^ Froese, Rainer and Pauly, Daniel, eds. (2017). Species of Caspiomyzon in FishBase. May 2017 version.
- ISBN 0-600-59690-7.
- ^ Froese, Rainer; Pauly, Daniel (eds.) (2012). "Caspiomyzon wagneri" in FishBase. September 2012 version.