Reifel C W, Travill A A
Anat Anz. 1978;144(5):441-9.
The gross morphology of 10 teleostean alimentary canals was compared. Each short, tubular esophagus was connected either to a stomach or, in the agastric species, to a proximal intestinal swelling. 3 stomach types were differentiated according to their shapes, which appeared to be correlated somewhat with diet. Intestines showed variations in amount of coiling and in numbers of pyloric ceca. Ratios of gut lengths to body lengths (RGL, relative gut length) were calculated and the results of previous studies were confirmed in that the RGL of a planktivore was small, while that of an organic detritus feeder was large, and that of a carnivore fell in between.
比较了10种硬骨鱼消化道的大体形态。每个短管状食管要么与胃相连，要么在无胃种类中与近端肠道肿胀相连。根据胃的形状区分出3种胃型，其形状似乎与饮食有一定关联。肠道在盘绕程度和幽门盲囊数量上存在差异。计算了肠长与体长的比值（RGL，相对肠长），先前研究的结果得到了证实，即浮游生物食性者的RGL较小，有机碎屑食性者的RGL较大，肉食性者的RGL介于两者之间。
