- Petromyzontidae (Lamprey)
- Scientific Name
- Lampetra appendix (DeKay)
- Common Name
- AMERICAN BROOK LAMPREY
- General Description
- Lampreys are characterized by their eel-like body shape, sucking-disk mouth with rows of horny teeth, but no jaws, a single dorsal nostril, and seven external gill openings on each side. They have cartilaginous skeletons, no paired fins, and simple rounded caudal fins.
- Specific Description
- Dorsal fins separate; reduced teeth, not radiating, but in several groups; trunk myomeres 63-70. Larvae with tail fin bluntly pointed, its rays pigmented only at their bases; caudal segments unpigmented at lower limits; gill region pigmented from back to half the distance to branchial groove; no pigment below eye or on upper lip; larvae lack pigment below eye.
- Great Lakes and St. Lawrence R; Mississippi drainage; Atlantic slope from Connecticut River to VA.
- Lives mostly in creeks, spends several years in sand mixed with organic matter; metamorphoses in the fall to spawn the following spring on fine gravel of shallow riffles. Non-parasitic. Length to 20 cm.
211 images/descriptions are openly available.
These materials are licensed under the Creative Commons Attribution-NonCommercial 4.0 International license. This means you are free to share and adapt the digital objects for any non-commercial purpose, so long as you give appropriate credit, provide a link to the license, and indicate if changes were made. You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits. The license does not in any way limit your rights under copyright law, such as fair use. Please read the license before using this work. If you use materials from this collection, please use the following attribution and copyright notice: "©2019 Regents of the University of Michigan. This work was created by the University of Michigan Museum of Zoology Fish Division. It is licensed under the CC-BY-NC 4.0 license." If you have questions about the collection, please contact the UMMZ Fish Division. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology.
- Add to Portfolio
- University of Michigan Museum of Zoology, Fish Species Descriptions