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The southern brook lamprey was thought to be restricted to the southern United States; however, Becker observed southern brook lamprey in Wisconsin in 1983. [3] The southern brook lamprey has also been reported to occur as far north as the Spruce River and the Tamarac River in Wisconsin and Minnesota. [4]
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).
Common Name Scientific Name Image Native Non-Native Notes Pacific Lamprey: Lampetra tridentata: River Lamprey: Lampetra ayresl: Pit-Klamath Brook Lamprey: Lampetra lethophaga
The eggs of the American brook lamprey (ABL) are white, sticky, and small, measuring about 1 mm (0.04 in). When they hatch, the embryos are small as well, measuring less than 5 mm (0.20 in); they are white and wormlike. Within a month they take on the larval appearance.
The western brook lamprey and river lamprey have been considered a clade separate from the other western U.S. lamprey species. [12] However, more recent genetic research suggests the western brook lamprey would be better categorized as a member of a Lampetra ayresii species complex. [11] Additional research that crossbred river lamprey and ...
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.
One endangered [6] parasitic variety, the Morrison Creek lamprey (Lampetra richardsoni var. marifuga), is unique to Morrison Creek, Vancouver Island, British Columbia. Which is larger in size (15 – 18 cm). The Morrison Creek lamprey is able to feed after it becomes an adult [6] unlike the western brook lamprey which can only feed in its ...
Lampetra zanandreai, the Lombardy lamprey, is a species of lamprey in the Petromyzontidae family. It is found in Croatia, Italy, and Slovenia.