— 145 — 



XI. Genus Physaloptera Rud. 1819. 



There vere 2 species of this genus at my disposal. Not- 

 withstanding the absence of males, I regard one species as 

 Physaloptera abbreviata Rud., and the other I consider to 

 be a new representative of the genus Physaloptera to which 

 I give the name Physaloptera britanica spec. nova. 



22. Physaloptera abbreviata Rud. 



In the material investigated I found immature females of 

 this species from a lizard — Agama sp. The genus Agajiia 

 presents a new host for this parasite. 



The length of the parasite reached 21 mm., at a maximum 

 width of 0,765 mm. in the region of the end of the oesopha- 

 gus. On the level of the genital aperture the width of the 

 body reached 0,76 mm., near the papillae of the neck — 0,357 mm. 

 and, lastly, on the level of the anus— 0,255 mm. 



The cyhndrical oesophagus reached 3,4 mm. in length. 

 The conical, pointed and rounded tail — 0,51 mm. in length. 

 The genital aperture is situated in the anterior half of the 

 body, at a distance of 2,9 mm. from the cephalic end. At a 

 distance of 0,56 mm. from the cephalic end are arranged the 

 pointed neck papillae. 0\\ the interior edge of both lips are 

 numerous pointed denticles; on each side of the middle, largest 

 denticle is one small one, which differs from all the rest in 

 its width (see fig. 64). 



23. Physaloptera britanica spec. nova. 



Host: Agama sp. 



Occurence: intestine (posterior portion). 



Males absent. 



Female. Body cylindrical, white, 42 mm. long at a ma- 

 ximum width — 0,6 mm. in the region of the posterior portion 

 of the oesophagus. In the region of the genital aperture 

 the width of the body reaches 0,51 mm., in the region 

 of the neck papillae— 0,425 mm., on the level of the anus — 

 0,8 mm. The caudal end is conically pointed, rounded, 0,46 ram. 

 long. The cylindrical oesophagus reaches 5,44 mm. in length. 



