102^ 



MR. R. J. ORTLEPP ON THE 



The lips are large and conica], and each carries a large conical 

 but blunt tooth; the inner tooth is large and of equal height, 

 with its free end divided into three points, of which the middle 

 one is sliglitly shorter than the other two. No lateral teeth are 

 present. Externally each lip carries a subdorsal and subventral 

 conical papilla. 



The cesophagus has its anterior nuiscular part thinner than 

 the rest, and the nerve ring encircles this part in its posterior 

 quarter. The oesophagus forms in the male about 1/5 '4, and in 

 the female 1/5-6 of the total body-length. 



Fetnale. 



The solitary female Mas 36 mm. long and just under 2 mm. 



Text-figure 8. 



Tliysaloptera anomala Mol. 

 A = Outer view of median teeth. 

 B = Caudal extremity of male. 



broad in its middle ; the body is much attenuated in the anterior 

 half, but only slightly so posteriorly; it is terminated by a 

 bluntly-pointed tail, l/60th of the body-length, and having the 

 caudal pores in its posterior half. 



The vulva is situated just behind the end of the cesophagus, 

 and divides the body in the ratio of 1 : 4*2 ; it leads into a coiled 

 Vagina 1'9 mm. long by 95 /x thick; this joins with a large and 

 spacious egg-chamber 2 mm. long by 560 jx broad, which pos- 

 teriorly narrows suddenly to join the 400 }x long common trunk, 

 which is of the same thickness as the vagina. The posterior end 



