1.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。
2.marine eellike mostly bottom-dwelling fishes of northern seas.
北部海洋中大多数底栖的似鳗海鱼。
3.eellike fishes found in subarctic coastal waters.
亚北极水域中似鳗的鱼。