Chestnut lamprey ... The chestnut lamprey (Ichthyomyzon castaneus) is a species of lamprey.

The chestnut lamprey is a chestnut-colored eel-like fish that has a cartilaginous, boneless skeleton, with no articulating jaw. Adults have a well-developed, rasplike oral disc, 7 porelike gill openings, no …

Icthyomyzon castaneus is thought to be derived from the silver lamprey, I. unicuspis (Hubbs and Potter 1971). Icthyomyzon castaneus is most similar to the southern brook lamprey (I. gagei).

After feeding on a fish in this manner for several days, the lamprey drops off. The fish is generally not killed directly by the attack but may die due to infections that invade through the wound.

Growing to a length of 14 inches, Chestnut Lampreys are gray to greenish-gray in color with a pale belly. The Chestnut Lamprey is currently known to occur occasionally in the lower Kansas River and may …

Oct 6, 2014 · Chestnut lampreys have a single nostril located between their eyes and seven gill pores located directly behind their eyes. These lampreys also exhibit sexual dimorphism, with males having …

A single pre-1900 collection in the Des Moines River is the only occurrence of this lamprey from Iowa’s interior waters. The Chestnut Lamprey moves among different habitats through its life cycle.

Chestnut Lampreys are typically brownish or chestnut in color, giving them their common name. Their slim, eel-like bodies are adapted to their parasitic lifestyle, which involves latching onto host fish to feed.

HABITAT AND BIOLOGY: Chestnut lampreys usually inhabit rivers, reservoirs, and medium or large streams. We collected several free-swimming individuals; those in the parasitic mode were attached …

Aug 25, 2023 · Chestnut lampreys are parasitic as adults but not as larvae. The adult chestnut lamprey attaches to a fish, then scrapes a hole in the body and sucks out blood and tissue fluids for nutrients. …