Abstract: This paper deals with the stomach of R．roxellanae．The stomach of R．roxellanae forms an S-shfiped curve．The first part from the fundus ventriculi to the first flexure is about 15cm．in length，the second part from the first flexure to the second，about 9cm ，the third part from the second flexure to the pylorus，the pars pylorica，about 7cm．The fundus is divided into two parts termed the saccus cecus sinister and the saccus cecus dexter．The latter is subdivided into the anterior，middle，and posterior parts．The stomach has two longitudinal bands along the greater and lesser cuvature respectively． The bands cause two rows of sacculations(haustra)，the caliber of which gradually decreases from the fundus to 2nd flexure．The canalis ventriculi beginsat the cardia and passes along the lesser cuvature to end at the second flexure．The mucous membrane around the cardia is glandless．the rest of the mucous membrane is glandular．The foveolae gastricae are clear．Besides ，the divisions function，case of formation and terms about some structures have been descussed．

Key words: Rhinopithecus roxellanae, Stomach, Anatomy

摘要： 本文对川金丝猴(Rhinopitltevus roxellanae)的胃进行丁观察。其胃呈S形，自胃的左端至第一曲长15era，第一曲至第二曲长9cm，第二曲以 下部长7cm。胃底包括左、右二盲囊，右盲囊可分前、中、后三部。二纵肌带沿胃的大、小弯行，纵肌带间形成两列肠袋样膨大。膨大自胃底向第二曲逐渐变小，第二曲以下为幽门部。胃管由贲门沿小弯伸至第二曲处。贲门周围为无腺区，其采部均有腺体分布。胃小凹明显。此外，对胃的分部、功能、形态成因以及一些结构术语作了讨论。

关键词: 川金丝猴, 胃, 解剖