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nounprimitive eellike freshwater or anadromous cyclostome having round sucking mouth with a rasping tongue
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type of:
Definition that contains lamprey
- family petromyzontidae lampreys
- suborder hyperoartia lampreys as distinguished from hagfishes
- petromyzontidae lampreys
- suborder petromyzoniformes lampreys as distinguished from hagfishes
- hyperoartia lampreys as distinguished from hagfishes
- petromyzoniformes lampreys as distinguished from hagfishes