Eudontomyzon sp. nov. 'migratory'


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Eudontomyzon sp. nov. 'migratory'
Taxonomic Notes: Anadromous predatory lampreys are reported in the literature and are considered to be extinct. In fact, the literature is ambiguous. The record of a migratory lamprey in the Prut system refers to a non-predatory species close to E. mariae but there is no evidence that it was anadromous. Attempts to obtain migratory lampreys in recent years in the Dniestr, Dniepr and Don have been unsuccessful; fishermen are not aware of its existence.

Assessment Information [top]

Red List Category & Criteria: Extinct ver 3.1
Year Published: 2008
Date Assessed: 2008-01-01
Assessor(s): Freyhof, J. & Kottelat, M.
Reviewer(s): Bogutskaya, N., & Smith, K. (IUCN Freshwater Biodiversity Unit)
Disappeared from its range (Dniestr, Dniepr and Don drainages) around the end of 19th century for unknown reasons, although it was the target of fisheries in the lower part of rivers in autumn and spring. Attempts to obtain migratory lampreys in recent years in the Dniestr, Dniepr and Don have been unsuccessful and fishermen are not aware of its existence.

Geographic Range [top]

Range Description: Dniestr, Dniepr and Don drainages (Black Sea basin).
Regionally extinct:
Moldova; Russian Federation; Ukraine
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Last recorded around the end of 19th century.

Habitat and Ecology [top]

Habitat and Ecology: Habitat:

Adults were known to migrate and were the target of specific fisheries in lower part of rivers in autumn and spring (including in lower Dniepr where E. mariae is known to be absent). It is not known whether the migration was restricted to freshwater or included a period at sea. Spawns during spring in headwaters, in clear water, over gravel bottom or recently flooded areas.
Systems: Freshwater

Threats [top]

Major Threat(s): Unknown.

Conservation Actions [top]

Conservation Actions: None.

Bibliography [top]

IUCN. 2008. 2008 IUCN Red List of Threatened Species. Available at: (Accessed: 5 October 2008).

Kottelat, M. and Freyhof, J. 2007. Handbook of European Freshwater Fishes. Publications Kottelat, Cornol, Switzerland.

Kottelat, M., Bogutskaya, N.G. and Freyhof, J. 2005. On the migratory Black Sea lamprey and the nomenclature of the ludoga, Peipsi and ripus whitefishes (Agnatha: Petromyzontidae; Teleostei: Coregoni dae).

Citation: Freyhof, J. & Kottelat, M. 2008. Eudontomyzon sp. nov. 'migratory'. The IUCN Red List of Threatened Species. Version 2014.3. <>. Downloaded on 29 March 2015.
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