- A class of Vertebrata, less than fishes, characterized by their purselike gill cavities, cartilaginous skeletons, absence of limbs, and a suckerlike mouth destitute of jaws. It offers the lampreys and hagfishes. See cyclostoma, and lamprey. Called additionally Marsipobranchiata, and Marsipobranchii.
Variant for "marsipobranchia"
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