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1 中华乌塘鳢生物学特性1.1 形态特征 乌塘鳢成体体长一般为17～25cm,鱼体前部略呈圆筒状,向后部呈延长形而侧扁。头部稍膨大,吻部宽而圆,口裂斜,眼小。体被细小栉鳞,纵列鳞100以上。体表粘滑。腹鳍分离,胸鳍大,两背鳍分离距离较远,尾鳍圆或稍尖、其基部上端有一带白色的大型黑色眼状斑。前鳃盖骨边缘无小刺,犁骨具齿。体呈褐色或带暗褐色斑纹,腹面淡褐色。
1 Chinese black pond 鳢 biological characteristics 1.1 morphological characteristics 乌 pond 鳢 adult body length is generally 17 ~ 25cm, slightly cylindrical front of the fish, extending to the rear was shaped and flat side. Head slightly swollen, kiss wide and round, splinter oblique, small eyes. The body is fine and small scales, longitudinal scales more than 100. Surface sticky slippery. Pelvic fin separation, large pectoral fins, the separation distance between the two dorsal fins, caudal fin or slightly pointed, the upper part of its base with a large white black eye patch. No edge of the former operculum spines, pocketed teeth. Body brown or dark brown markings, ventral light brown.