446 



MISS M, TURNER ON THE NEMATODE 



maximum thickness of 0-75 mm. Tlie female is 17-20-5 mm. in 

 length with a maximum thickness of 1 mm. Two males and ten 

 females were measured. The body is thickest in the middle, but 

 is quite thick throughout most of its length. About 3 mm. from 

 each end it tapers to the extremities. 



The wall of the intestine, especially the anterior end, is dark 

 with a brownish pigment. 



Text-fiffure 1. 



CjjUchnostomian zehrce, sp. n. 

 Anterior end of Lodv. View from dorsal side. 



Tlie cuticle is finely striated, the striations oi>' the middle of 

 the body being 15//. apart. 



The head is marked off from the body by a very slight con- 

 striction. It has a diameter of 280/X-300/A in the five specimen;^ 

 measured. The mouth collar is well developed, with a height of 

 5 the breadth. It is almost ellipsoidal in shape, being flattened 

 anteriorly. The lateral head papillae are broad and do not project 

 beyond the mouth collar. The submedian head papillse are 

 rather large and conical and project almost to the anterior edge 

 of the external leaf crown. 



The external leaf crown consists of 85-93 narrow^ and pointed 

 leaves, which project well in front of the anterior margin of the 

 mouth collar. The internal leaf crown has 48-59 leaves. Each 

 leaf is rather blunt and is about twice as broad as one from the 

 external leaf crown. Amongst the ordinary cuticular leaves of 



