NEMATODE GENUS PHYSALOPXERA, 



1079 



Female. 



The solitary female is robust, having somewhat the appearance 

 of a short ascaricl. It is 56 mm. long, and 1-7 broad in its middle ; 

 it is attenuated only very slightly anteriorly. 



The vulva is situated jflush with the surface and 15-85 mm. 

 from the anterior end ; it leads into a long vagina 3-62 mm. long 

 and 152 /A broad; this vagina, except for a loop at its end, passes 

 straight down the body to join the egg-chamber ; this is also very 

 long but not very broad, measuring 4-86 mm. long by 343 ^ in 

 diameter. The end of the chamber joins the common trunk, 

 Avhich is 2-19 mm. long and about as thick as the vagina. The 

 rest of the genitalia are remarkable for the number and mode of 

 origin of the uteri ; there are 14 uteri arising from six branches, 

 which unite to form the common trunk ; four of these branches 



Text-figure 43. 





Fhl/saloptera capensis, sp. n. 

 Caudiil extremity of male. 



give rise each to two uteri, whereas each of the remaining two 

 branches give rise to three uteri. 



The tail is pointed and 950 /^ long ; the caudal pores open 380 p. 

 from its tip. 



The eggs are oval and thick-shelled, measuring 55 ^a long by 

 32 jLc broad, and shell 4 jx thick. 



Male. 



The males are much slenderer than the females, measuring 

 24 mm. long by 900 /a broad just behind their middle; they are 

 slightly attenuated anteriorly. 



The caudal bursa is large, and twice as long as it is broad ; it 

 forms about 1/1 1th of the body-length ; the caudal alae are well 

 developed, and are supported by the four pairs of pedunculated 

 papillce, of which two pairs are pre-anal and two paii-s post-anal 



72* 



