22. YERMES. 



8. Nematodes 



by 



ROBERT T. LEIPER. 



With 9 textfigures. 



The Nematodes brouglit back from German East Africa by Professor Sjöstedt 

 form an interesting addition to the meagre records of the Helminth Fauna of Tropical 

 Africa. Small collections have been described from The Sudan by Shipley and by 

 myself; from British West Africa, German West Africa and the Nyassa Sea by v. Linstow; 

 and from Uganda by Parona, but the group has been much neglected by collectors. 



The series of monographs on »Die Thierwelt Ost- Afrikas und der Nachbargebiete» 

 published by Mcebius in 1898 mentions a sohtary Nematode species. The important 

 collecting Expedition recenlly sent to the region of the Mountains of the Moon» by the 

 British Museum returned apparently without a Single specimen, although it collected no 

 less than 750 different kinds of Vertebrales! 



Cjiiclinostoimim puguicaudatum n. sp. 



Of Phacochoerus celiani massaicus Lönnb. — Kilimandjaro. Fairly stout and 

 rod-hke forms tapering in the female to a line acicular tail. In the male on the other 

 liand the body gradually lapers from the posterior portion forwards. 



The average lengtli of the males is 15 mm. of the females 20 mm. 



The head is siightly tliickened and the mouthcollar separated by a distinct con- 

 striction from the rest of the body. The oral aperture is ellipsoidal having its long axis 

 placed dorso-ventrally. It is difficult to enumerate the elements of the corona radiata 

 for in this species only some of the sharply tipped processes appear to reach and pro- 

 trude from the mouth. The internal crown of the corona radiata cannot be distinguished 

 as a series distinct from the external crown. The cuticular ridges that form the external 

 leaf crown radiate inwards over the vault of the mouth capsule and number no less 



Sjöstedts KilimandjaroMeru Exjjedition. 22. ' 5 



