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JAMOYTIUS

JAMOYTIUS Named for the English paleontologist J. A. Moy-Thomas, the marine Jamoy- tius had a narrow, tubular shape, with a long fin on its back, a pair of lateral fins running along its flanks and a small anal fin. Uplift was produced by the strongly downturned tail. Jamoytius had a round, suckerlike mouth, and it was probably a parasite like its living descendant, the maring lamprey. This jawless fish attaches itself to other fishes, rasps away their flesh and then sucks their blood. ©1988 Marshall Editions Limited .