1.068 



MR. R. J. ORTLEPP ON THE 



from the anterior end ; the excretory pore is seen on the ventral 

 surface about 95 /x, further back ; it leads into the excretory duct, 

 which pa«ses into a gland lying against the ventral surface of the 

 CESophagus. The two lateral lips are each surmounted by a large 

 triangular tooth, slightly recurved at its tip; applied to the inner 

 surface of each is a small spike-like tooth. On either side of the 

 median tooth, in the lateral angles of each lip, there is seen 

 another tooth, much smaller than the terminal tooth and split 

 almost to its base; just below these and on the outer surface of 

 the lip there is a conspicuous papilla. The lips are immediately 

 followed by the oesophagus, which is straight and thickens slightly 

 towards its posterior end. It is about 4*7 mm. long or 1/9-5 of 

 the body-length, and is divided into a short and narrower 



Text-figure 36. 



Fhysaloptera antarctica v. Linst. 

 Latero-ventral view of cephalic extremity. 



anterior part about 475 /^ long and a longer posterior glandular 

 part. The first part is surrounded near its base by the large 

 nerve ring. 



The chief characteristics of the female genitalia is the presence 

 of four uteri. The vulva is a circular aperture, flush with the 

 surface and situated at about the junction of the 1st and 2nd 

 quarters of the body. It leads into a short and slightly coiled 

 vagina, very muscular and about 90 /x in diameter. It is followed 

 by the egg-chamber, about 259 /x in diameter ; the hind end of 

 this chamber constricts suddenly, so that the common tiunk has 

 about the same diameter as the vagina. The common trunk 

 divides posteriorly into two branches, and these after a short 

 distance subdivide again. The four uteri thus formed may first 



