Cephalaspidormorphi- Petromyzon marinus
The organisms found in Class Cephalaspidomorphi live in conditions which are temperate. The species are anadromous, which means they hatch and breed in fresh water, but mature in marine water. The organisms are parasitic as adults- attach to other fishes with their suction-like mouths and rasp holes in the skin of their prey. The buccal glands in the Cephalaspidomorphi secrete an anticoagulant to ensure free-flowing food source. The larvae of the organisms are called ammocoetes, resembling the amphioxus- primarily detritus feeders until they metaporphse into adults, sometimes after 6 or 7 years as a larva.
Examples of organisms found in the Class Cephalaspidomorphi are commonly known as lampreys.
Cephalaspidormorphi- Entosphenus tridentatus
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Major divisions of life. (1999). Retrieved from http://waynesword.palomar.edu/trmar99.htm
