Lamprey
Lamprey
Lamprey (pronounced: /ˈlæmpri/) is a type of jawless fish that belongs to the order Petromyzontiformes. The term "lamprey" is derived from the Latin word "lampetra," which translates to "stone licker."
Description
Lampreys are characterized by their eel-like bodies and the absence of paired fins. They are known for their distinctive mouth, which is circular and filled with rows of sharp teeth. Lampreys are parasitic, using their tooth-filled mouths to attach themselves to the skin of other fish and feed on their host's blood and body fluids.
Species
There are approximately 38 known species of lampreys. Some of the most common species include the Sea Lamprey, Brook Lamprey, and Northern Lamprey. Each species has its unique characteristics and habitats.
Habitat
Lampreys are found in coastal and fresh waters in temperate regions around the world. They are most commonly found in the Atlantic Ocean, the Mediterranean Sea, and the Great Lakes region in North America.
Life Cycle
The life cycle of a lamprey consists of two main stages: the larval stage and the adult stage. In the larval stage, lampreys are known as "ammocoetes" and live in freshwater habitats. After several years, the ammocoetes undergo a transformation into adult lampreys and migrate to the sea or lakes, where they become parasitic.
Medical Significance
Lampreys have been used in medical research due to their unique physiological characteristics. For instance, the lamprey immune system has been studied as it offers insights into the evolution of the vertebrate immune system.
Related Terms
External links
- Medical encyclopedia article on Lamprey
- Wikipedia's article - Lamprey
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