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The southern brook lamprey (Ichthyomyzon gagei) is a lamprey found in the Southern United States including Arkansas, Louisiana, Mississippi, Alabama, and Georgia. It is a jawless fish with a sucking mouth on one end of it (like a leech ).
The brook lamprey is a common, non-parasitic species that is endemic to Europe. [1] Adult brook lampreys measure from 12 to 14 cm (4.7 to 5.5 in). The body is highly elongated and dark blue or greenish above, lightening to yellowish off-white on the sides and pure white on the ventral side.
Lethenteron appendix, the American brook lamprey, is a common non-parasitic lamprey in North America. [4] In adults their disc-like mouths contain poorly developed teeth, useless for attaching to a host.
Sea lamprey is the most sought-after species in Portugal and one of only two that can legally bear the commercial name "lamprey" (lampreia): the other one being Lampetra fluviatilis, the European river lamprey, both according to Portaria (Government regulation no. 587/2006, from 22 June).
Lethenteron camtschaticum (Tilesius, 1811) (Arctic lamprey) (Japanese brook lamprey) [3] Lethenteron kessleri (Anikin, 1905) (Siberian brook lamprey) Lethenteron mitsukurii (Hatta, 1901) Lethenteron ninae Naseka, Tuniyev & Renaud, 2009 (Western Transcaucasian lamprey) Lethenteron reissneri (Dybowski, 1869) (Far Eastern brook lamprey) [3]
The chestnut lamprey is closely related to the nonparasitic southern brook lamprey, [8] and the two have been termed a paired species. Similar species include the parasitic relatives Ichthyomyzon bdellium, I. greeleyi, and I. unicuspis. [4]
Mordacia praecox, the Australian brook lamprey or nonparasitic lamprey, is a freshwater species of southern topeyed lamprey that occurs in south-eastern Australia. It has a thin eel-like body around 12 to 15 cm (4.7 to 5.9 in) long, with two low dorsal fins on the back half. The skin is dark blue above and grey below.
Lampetra is a genus of lampreys in the family Petromyzontidae.. Phylogenetic studies indicate that this genus as presently defined is polyphyletic, with species of this genus from western North America forming a clade that forms the sister group to Lethenteron, Eudontomyzon, and Lampetra sensu stricto (eastern North American and European species).