THE MORPHOLOGY AND HISTOLOGY OF THE ALIMENTARY CANAL OF GLOSSOGOBIUS GIURUS (HAM.)

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Abstract
Glossogobius giurus is a carnivorous fish with a wide mouth and a short alimentary canal. All the layers of tissue ordinarily found, in the wall of the gut are well developed except in the buccal cavity and the pharynx where the muscular layers are missing.The mucous membrane and the musculature vary greatly in the different regions. The muscularis mucosa is generally wanting. The stratum compactum is not well developed except in the buccal epithelium. There is a true stomach but no pyloric caeca. It is tentatively concluded that fish possess only pepsin-secreting gastric glands. Detailed descriptions are given of typical transverse sections of the various regions.