38 ZOOLOGICAL EESULTS OF THE RUWENZORI EXPEDITION. 



is thus the largest species of the genus. The colour above is dark purplish brown. 

 The clitellum was not developed. The setce are paired; but the phrase descriptive of 

 these structures in Michaelsen's amended definition of the genus*, viz., "Borsten 

 ventral sehr Aveit, lateral enger gepaart," hardly applies to the present species. 



The ventral setse (text-fig. 7) are rather wide, much as in Polytoreutus, but the 

 lateral setae are only slightly more approximated, the proportions being about 5 : 6. 

 It is remarkable that on the nine or ten anterior segments of the body the ventral setee 

 are very much larger, perhaps twice the size of the lateral setse ; this discrepancy 



Text-fis. 7. 



Ventral view of Eminoscolex ruwenzorii. 

 Some of the segments are numbered. 



ceases after that point, and both pairs of setae are equisized and small. The ventral 

 pair of setse of the xviith segment are absent. 



The nephridiopores lie in front of the lateral pair of setse, and are not specially 

 related to oue or other of the pair. They appear to begin in the third segment. 



The oviducal pores are upon the xivth segment, in line with the nephridiopores. 



The spermathecal pores are paired as in other species of the genus. The pore of 

 each side lies m front of the outer of the ventral pair of setse. The pores are not very 

 large. 



* "Die Oligoehasten Nordost-Afrikas," Zool. Jahrb. (Abth. f. Syst.) Bd. xviii. p. 482, 



