42 Charles GELDERD 



The extremity of the intestine is glandular ; small round globules 

 similar to those of the diverticula, are excreted from the walls in large 

 quantities. 



The anus possesses the same valvular folds as our type, and is fur- 

 nished with powerful muscles. 



The digestive glands of this species are of a quite différent structure, 

 being formed of a large number of small glandular tubes and do not possess 

 the glandular ridges of the typical Schizopoda. 



Chapter II. 



HI STOLOGY. 



Stomodœal part. 



The epithelium of the œsophagus and of the stomach is formed of 

 very small cells tightly packed together. 



Thèse compact masses constitute the différent reliefs. 



The protoplasm of thèse cells is of a filamentous nature, but only 

 slightly developed. 



The nucleus is deeply stained by the basic dyes. 



The epithelial cells are covered with a thin cuticle in the œsophagus, 

 which is thicker on the great reliefs of the stomach cavity. 



In the layer of epithelial cells which constitute the matrix that portion 

 of the cells which is on the side of the digestive cavity possesses a proto- 

 plasm which is coloured by blue carminé. 



This colour becomes gradually feebler the nearer it approaches to the 

 lumen of the cavity. 



The cuticle is slightly coloured on the surface next to the matrix, and 

 also on the inner surface which is the limit of the digestive canal. 



The inner surface carries either hairs, teeth or hooks. 



Outside the epithelial cells is the layer of circular muscles. 



Outside thèse, in the œsophagus, are the longitudinal muscles. 



It is worthy of remark that in the Edriophthalmia the circular muscles 

 are situated outside of the longitudinal bands. 



