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MISS M. TURNER OX THE NEMATODE 



The median lobe of the bursa is very short aud notched. The 

 dorsal ray, which narrows abruptly to form a finger-like distal 

 extremity, with its two branches arising together and equal in 

 length, differs from the dorsal ray of the bursa of any Cylich- 

 nostome hitherto desci'ibed. So that the dorsal ray forms one of 

 the chief distinguishing features of Cylichnostomuni zebrce. 



Text-ficfure 6. 



(a) 



/ {b) 



Ci/Iiclinostomum zebrce, sp. n . 

 15ursa of Male, (a) Lateral view, (b) Dorsal view. 



Another character peculiar to C. zebne is the possession of the 

 six elongated and highly refractive leaves interspersed between 



