川陕哲罗鲑 chuān shǎn zhé luó gu

川陕哲罗鲑（学名：Hucho bleekeri）是鲑科、哲罗鲑属鱼类。体长椭圆形，略侧扁，腹部圆。口大，斜裂，向后延伸至眼球中部或后缘的下方。上颌稍突出，略长于下颌;上颌骨细长，向后伸过眼后缘。颌骨、犁骨和舌骨均有较多的粗壮牙齿，齿锥形，末端锋利，斜向内方。犁骨轴部每侧有四大牙齿。鳃孔大，鳃膜和鳃峡不相连。眼较大。鳞小，侧线鳞125-152，腹鳍基具腋鳞3枚。侧线平直。背部蓝褐色，腹部银白色。体侧和鳃盖上分布有呈小十字形的不规则灰黑色小斑点。

Chucho bleekeri (scientific name: hucho bleekeri) is a fish of Chucho genus and Salmonidae. The body is oval in length, slightly flat on the side, and round in the abdomen. The mouth is large, obliquely split, and extends backward to the middle or lower part of the posterior edge of the eyeball. The upper jaw is slightly protruding, slightly longer than the lower jaw; The maxilla is long and thin, extending backward through the posterior edge of the eye. The jaw, vomer and hyoid bones have more robust teeth, with conical teeth, sharp ends and inclined inward. There are four teeth on each side of the axis of the vomer bone. The gill foramen is large, and the gill membrane is not connected with the gill isthmus. The eyes are large. Scales small, lateral scales 125-152, ventral fin base with 3 axillary scales. The side line is straight. The back is blue brown, and the abdomen is silver white. Irregular gray black spots in the shape of a small cross are distributed on the body side and the operculum.