无鳞鱼

细长的大型海生无鳞鱼，有尖牙和船帆形的长背鳍。

Large elongate scaleless oceanic fishes with sharp teeth and a long sail-like dorsal fin .

这种无鳞鱼长着列骨板，嘴前有触须，能活几十年，需较长时间才能成熟。

The scaleless fish , which have rows of bony plates and barbels that dangle before their mouths , can live for decades and are slow to reach maturity .

从进化的角度来看，认为红鲫较鲫鱼进化，无鳞鱼较有鳞鱼进化，两栖类较鱼类进化，虎纹蛙较黑斑蛙进化。

Discussing the scarfskins from the point of evolution , it implied that red Chinese crucian is more evolutional than Chinese crucian , fish without scales than fish with scales , Amphibia than Pisces ( fish ), and tiger frog than pond green frog .

北大西洋沿海水域中滑溜溜的无鳞食用鱼。

Slippery scaleless food fish of North Atlantic coastal waters .

多数细长的无鳞海水鱼，有大的胸鳍和退化的腹鳍。

Elongated mostly scaleless marine fishes with large pectoral fins and reduced pelvic fins .

美国南部出产的无鳞食用鱼；通常是人工养殖。

Flesh of scaleless food fish of the southern United States ; often farmed .

鲶鱼鲶鱼亚目的无鳞淡水鱼，其特征是前颚生有胡须状触须。

Any of numerous scaleless , chiefly freshwater fishes of the suborder siluroidei , characteristically having whiskerlike barbels extending from the upper jaw .

头宽而扁平、嘴很宽、体表有粘液但无鳞的底栖鱼。

Bottom-dwelling fish having scaleless slimy skin and a broad thick head with a wide mouth .