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quillback
The Quillback (''Carpiodes cyprinus'') is a type of freshwater fish of the sucker family. It is deeper-bodied than most suckers, leading to a carplike appearance. It can be distinguished from carp by the lack of barbels around the mouth.
==Physical description==
The Quillback is a large, ectothermic, deep-bodied fish found throughout North America. It has a small head, humped back and deeply forked caudal fin. The compressed body of the Quillback makes it look flattened when viewed from the side. The Quillback has a subterminal mouth with no barbels, and no nipple-like protrusions on the bottom lip. It has large, reflective, silver cycloid scales that are responsible for giving the Quillback its characteristic silver color. They have a white belly with yellow or orange lower fins. The tail and dorsal fin are usually gray or silver. The Quillback gets its name from the long quill that is formed via the first several fin rays of the dorsal fin. Quillback are typically 15-20 inches on average, weighing between 1 and 4 pounds. However, they can grow up to 26 inches and weigh 10 pounds. The Quillback Carpsucker has a nearly straight, hyper-sensitive lateral line, composed of at least 37 lateral line scales. This helps the fish locate predators and prey.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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