Microanatomy and histology of the alimentary tract of the air-breathing fish Channa gachua (Hamilton): SEM study

Abstract

The microanatomy and histology of buccal cavity, oesophagus, stomach. pyloric caecae and intestine of the murrel Channa gachua (Ham) have been described using light and electron microscopy. Dentition in the upper and lower jaws comprises villuform, pointed teeth and in the outer margins, a few inwardly directed teeth are located. Oesophagus shows large media and small lateral folds along its length. Stomach is differentiated into cardiac and pyloric regions, while the intestinc is short and has luminal folds along its length.