鱼虱 (Argulus) 属，尾鳍，金鱼
Small, gray speckled fish louse (Argulus spp) attached to the tail fin of a fancy goldfish.
Courtesy of Dr. Louise Bauck.
在这些主题中
Small, gray speckled fish louse (Argulus spp) attached to the tail fin of a fancy goldfish.
Courtesy of Dr. Louise Bauck.
