Lampetra appendix

Lethenteron appendix

A nonparasitic lamprey of North America

Temperate
Northern Hemisphere
Regional distribution
Freshwater fish
Atlantic Ocean
North America
Anguilliform
Medium
Temperate fish

Lethenteron appendix, the American brook lamprey, is a common non-parasitic lamprey in North America. In adults their disc-like mouths contain poorly developed teeth, useless for attaching to a host.

Class: Lampreys
Order: Lampreys
Family: Petromyzontidae
Genus: Lethenteron
Maximum length: 35 cm
Water: Freshwater
Body shape: anguilliform
Distribution: North America: Canada and USA: Lake Superior Basin, Michigan; Lake Michigan Basin, Michigan (Carp Lake, Betsie, Pine, and Pentwater rivers) and Indiana; Lake Huron Basin, Michigan; Lake Erie Basin, Ontario and Michigan; Lake Ontario Basin, Ontario and New York; Mississippi River Basin, Minnesota, Missouri, Pennsylvania, Kentucky, Tennessee, and Alabama; St. Lawrence River Basin, Québec and New York; Atlantic Slope basins, New Hampshire, Massachusetts, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, and Virginia (Ref. 89241 ). Two subspecies Lethenteron appendix appendix and i>L. appendix wilderi were recognized, but ranges poorly understood (Ref. 86798 ).
Conservation status: LCLeast Concern

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