LKIPER, NEMATODES. 



26 



extended. The tlmmb represents the position of the vulvar aperture and the anus opens 

 about half way along the tail as represented by the forefinger. The diameter of the 

 body just anterior to the vulva is 0,f. mm. At the anus it is reduced to O.is mm. 



Lagochila.scaris major n. sp. 



Of Felis leo sabah'ensis Lönnb. — Kilimandjaro. 



The genus Lagochüascaris (mihi) is characterised by the presence of a narrow 

 keel-like projecting ledge of cuticle in the region of the lateral bands along the whole 

 lenglh of the body: the Separation of the three lips surrounding the mouth from the 

 rest of the body by a distinct groove and from each other by cuticular intermediate 

 lips that have no. pulp' the bifurcation of the cutting edge of each lip: in the male, 



Fifi 



Ovum. 



8 ' 9 



Figs. 6 — 9. Lagochüascaris major n. sp. 

 Fig. 7. View of ventral surface of tail in male. — Fig. 8. Anterior extremity of L. major showing 

 lips from ventral a.spect. — Fig. 9. .\nterior extremity shoving dorsal lip. 



the disposition of the post-anal papillae : in the female the cephalad course of the vagina 

 from the vulva and the mosaic markings of the spheroid ova. 



L. major apart from the absence of the cephalic alae resembles Belascaris mystax 

 in general appearance. The male and female specimens that formed the basis of the 

 following description and measurements were 21,3 mm. and 22.7 mm. in length and 

 0,5 mm., 0,6 mm. in greatest breadth respectively. 



The male is easily distinguished from the female by a slight ventral twist of the 

 posterior eiid of the body. Save for the terminal tapering of 1 mm. the posterior two 

 thirds are of almost uniform thickness (0,6 mm.) The anterior third genlly tapering to 

 0,2 mm. at the bases of the lips. The Oesophagus is a simple muscular bulb very 

 similar to that seen in Toxascan's marginafa. It measures 1.7 mm. in length 0,26 mm. 

 in greatest breadth. The cloaca opens 0,i5 mm. from the tip of the tail. The three 

 porlions of the testicular tube are strongly demarcated. The ejaculatory portion shows 

 a distinct bulb when passing into the coinmencement of the seminal vesicle at 1 mm. 



