Sea Lamprey in the Great Lakes
- Article about a species that invaded the Great Lakes of North America from the Atlantic Ocean and efforts to control its spread.
- http://www.umesc.usgs.gov/invasive_species/sea_lamprey.html

Sea Lamprey
- A description of this species, its behavior and breeding habits, and its range in the North Atlantic.
- http://www.gma.org/fogm/Petromyzon_marinus.htm

Lampreys - Petromyzontidae
- Information about three species found in California.
- http://elib.cs.berkeley.edu/kopec/tr9/html/fam-lampreys.html

Hyperoartia
- Introduction to the taxonomy of lampreys by Philippe Janvier.
- http://tolweb.org/tree?group=Hyperoartia&contgroup=Vertebrata

Introduction to the Petromyzontiformes
- Short illustrated article about lampreys.
- http://www.ucmp.berkeley.edu/vertebrates/basalfish/petro.html