鲋鱼 fù yú
鲋鱼,也指鲫鱼,鲫(学名:Carassius auratus)是鲤科、鲫属鱼类,体长46.9-255毫米。体长椭圆形,侧扁,背鳍始点处体最高,腹缘窄而无皮棱;眼侧中位,后缘距吻端较近。眼间隔宽凸。前、后鼻孔相邻,位于眼稍前方。口前位,斜形,下颌较上颌略短。唇发达。无须。鳃孔大,侧位,下端达前鳃盖骨角下方。鳃盖膜相连且连鳃峡。鳃耙外行发达,有许多小突起;内行宽短。螺分2室。肛门位于臀鳍始点略前方。背鳍始于体正中央的稍前方;臀鳍短,始于倒数第6-7背鳍条基下方;最后硬刺似背鳍硬刺;胸鳍侧位而低;腹鳍始于背储始点略前方;形似胸鳍;除少数小鱼外,均不达肛门。尾鳍深又状,叉钝圆。
Carassius auratus (scientific name: Carassius auratus) is a fish of Cyprinidae and Carassius auratus, with a body length of 46.9-255 mm. The body is oval in length, flat on the side, the body is the highest at the starting point of dorsal fin, and the ventral margin is narrow without skin edge; The posterior edge is near the snout. The interocular space is wide and convex. The anterior and posterior nostrils are adjacent and located slightly in front of the eyes. Anterior position of mouth, oblique, the lower jaw is slightly shorter than the upper jaw. Developed lips. No. The branchial foramen is large, lateral, and the lower end reaches below the angle of the anterior operculum. The operculum is connected with the gill isthmus. The gill harrow is well developed and has many small protuberances; The inner row is wide and short. Screw is divided into 2 rooms. The anus is located slightly in front of the starting point of the anal fin. The dorsal fin begins slightly in front of the center of the body; The gluteal fin is short, starting from the bottom of the penultimate 6-7 dorsal fin base; The last hard thorn is like the dorsal fin hard thorn; The pectoral fin is lateral and low; The ventral fin begins slightly in front of the starting point of dorsal storage; Resembling pectoral fin; Except for a few small fish, they do not reach the anus. The caudal fin is deep and shaped, and the fork is blunt and round.
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