Old World freshwater catfishes having naked skin and a long anal fin more or less merged with the eellike caudal fin.
东半球的淡水鲇鱼,体表无鳞,有类似鳗鱼尾鳍的很长的臀鳍。
Primitive eellike freshwater or anadromous cyclostome having round sucking mouth with a rasping tongue.
原始的似鳗的淡水或淡水中产卵的圆口纲脊椎动物,它们有长有吮吸嘴,嘴内有锉舌。
Small eellike fishes common in shallow waters of the North Atlantic.
北大西洋浅水中常见的似鳗的小鱼。
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