Moitra S K, Ray A K
Anat Anz. 1977;141(1):37-58.
The morpho-histology of the alimentary canal in an Indian freshwater perch, Colisa fasciata (Bloch) in relation to food and feeding habits has been described. C. fasciata is an omnivorous, mid-feeder. The mouth is protractile. The alimentary canal comprises the lip, buccal cavity, pharynx, oesophagus, stomach, pyloric caeca, a long and coiled intestine and the rectum. The teeth on the roof and floor of the buccal cavity, jaw teeth, pharyngeal teeth and horny pad teeth are all adapted to the nature of the food ingested. The nature and disposition of taste-buds and mucous cells on the lips suggests that the fish is a taste-feeder. The presence of taste-buds in the anterior oesophagus indicates that the gustatory sense extends upto the oesophagus. The stomach is divided into the cardiac and pyloric regions. The surface epithelium of the cardiac stomach secretes mucous and the glandular epithelium contains numerous gastric glands. The pyloric caeca are paired. The intestine is divided into anterior, middle and posterior regions. The R.L.G. (relative length of the gut) varies from 4--5. Mucosal folds are simple.
描述了印度淡水鲈丽纹斗鱼（Colisa fasciata，布洛赫）消化道的形态组织学及其与食物和摄食习性的关系。丽纹斗鱼是杂食性的中层摄食者。口可伸缩。消化道包括唇、口腔、咽、食管、胃、幽门盲囊、长而盘曲的肠和直肠。口腔顶部和底部的牙齿、颌齿、咽齿和角质垫齿均与所摄食食物的性质相适应。唇部味蕾和黏液细胞的性质及分布表明该鱼是味觉摄食者。食管前部存在味蕾表明味觉感受器延伸至食管。胃分为贲门部和幽门部。贲门胃的表面上皮分泌黏液，腺上皮含有大量胃腺。幽门盲囊为成对结构。肠分为前、中、后三段。相对肠长（R.L.G.）为4 - 5。黏膜褶皱简单。
