Petromyzontiformes[Français]

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1 : primitive eellike freshwater or anadromous cyclostome having round sucking mouth with a rasping tongue
2 : primitive eellike freshwater or anadromous cyclostome having round sucking mouth with a rasping tongue
3 : primitive eellike freshwater or anadromous cyclostome having round sucking mouth with a rasping tongue
4 : primitive eellike freshwater or anadromous cyclostome having round sucking mouth with a rasping tongue