Parasitic Worms from East Africa. 



287 



0*4 ram. from the base the tubular portion is suddenly nar- 

 rowed to form a supporting rib along the dorsal edge, while 

 the ventral edge is produced into a flange. There is an 

 accessory piece (fig. 4, a.p.) measuring 0*23 mm. in length. 

 The extremity of the tail is produced into a very fine tapering 

 filament. 



.big. 4. 



Subulura loveridgei. Caudal end of male ; lateral view. 

 a.p., accessory piece ; sp., spicule ; su., sucker ; 1-10, papilla?. 



In the female the tail, which is 1*7 mm. long, tapers 

 gradually from the anus to a fine point. The vulva is 

 situated considerably in front of the middle of the body, at 

 11'9 mm. from the head-end. There is an ovejector like that 

 of S. allodapa and S.forcipata, as described and figured by 



