Species of Monhystera (Nematodes) . 



419 



somewhat tapering ; it is never blunt and square like that of 

 some individuals of the former species. A pair of lateral 



Fig. 4. Fig. 5, 



Fie:. 6. 



A.R 



Fig. 4. — Monhystera carcinicola : hermaphrodite form from Cardisotna 



guanhumii Lateral view, much magnified. 



A., anus; 2>.,bulb of oesophagus; Int., chyle-intestine ; Oct., oesophagus ; 



Ov., ovary ; T., testis. 



Fig. 5. — Monhystera carcinicola : head-end, very highly magnifled. 

 Ch., chitiuousrod in wall of mouth-cavity ; L., lateral organ. 



Fig. 6. — Monhystera carcinicola : tail-end of hermaphrodite form from 



Cardisotna guanhumi, highly magnified. 



A., anus ; A.P., accessory piece ; CO., caudal glands; P., papilla? ; 



S., spicules. 



organs (fig. 5, L.) is always distinctly visible close to the 

 head-end ; they are small and of circular form. 



