Concept
Version 6
Created by Boundless
Agnathans: Jawless Fishes
Parasitic lampreys
These parasitic sea lampreys attach to their lake trout host by suction and use their rough tongues to rasp away flesh in order to feed on the trout's blood.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, Fishes. October 17, 2013."
http://cnx.org/content/m44687/latest/Figure_29_02_02.jpg
OpenStax CNX
CC BY 3.0.