THE ANATOMY AND HISTOLOGY OF OESOPHAGUS AND STOMACH OF Neophocoena phocaenoides
江豚食道和胃解剖及组织学的研究

This paper deals with morphological and histologioal structure of oesophagus and stomach of Neophocoena phocaenoides. There are no glands in the mucosa of the oesophagus, epithelial surface of which is keratinized. The stomach consists of the following four compartments, forestomach, main stomach, connecting channel and pyloric stomach. The forestomach is a dilatant part of the oesophagus. The cardiac glands are found at narrow zone along the border line between the forestomach and the main stomach. The histologieal and morphological characteristic of the compartments have been interpreted in relation to feeding habits and function of Neophocoena phocaenoides.