1062 



MR, R. J. ORTLEPP ON THE 



(23) Physaloptera paradoxa von Linstow, 1908. (Text-figs. 

 33 & 34.) 



Syn. Ph. affims Gedoelst, 1916. 



The pinmaiy study of this species is based on materials 

 collected in the Zoological Society's Gardens frOm Varanus 

 alhigtdaris. All the specimens from the other hosts were kindly 

 handed over to me by Professor Leiper for study and comparison. 

 The material from Va7^anus albigtdaris consisted of about a. dozen 

 males and females, which had unfortunately been killed in 

 formalin, so that the specimens were somewhat shrunken and 

 coiled. 



The shape of the body is very similar to that of P. quadro'^aria^ 

 but is much smaller in size, mature females varying from 18 to 



Physaloptera paradoxa v. Linst. 

 A = Inner view of lip. B = origin of uteri. 



C = Eeceptaculum seminis. D= Egg-shell. 



24 mm. in length with a thickness of 750 to 870 ^t in their 

 posterior third, and the males from 14 to 18 mm. long by 

 450 to 500 /i. broad in their posterior fifth. 



The cuticle is coarsely annulated and, in addition, shows a very 

 fine transverse striation ; it is only very slightly reflected over 

 the base of the lips. The cervical papillse and excretory pore 

 are situated in the same level behind the junction of the mus- 

 cular and glandular oesophageal parts; in the male they are 

 about 550 jLt from the anterior end and in the female about 

 750ju. 



The lips are similar to those described for Ph. quadrovaria, 

 except that lateral to each of the outer teeth there is another 



