178 Records of the Indian Museum. [Vol. X, 



(2) Atractis opeatura, Leidy. (Leidy (5), p. 410), from the 

 intestine of the iguana Cyclura haeolopha, Cope, Australia. The 

 head is tripapillate, 9 and cf both 5 mm. long. 



(3) A. hystrix, Dies. (Diesing (2) p. 188) from Podocnemis 

 erythrocephala , America. 



(4) A. perarmata v. lyinstow (v. Linstow (ii), p. 516, from 

 Cinixys be! liana, German East Africa, cf 5' 6 mm. $ 6" 2 mm. 

 .Spicules of o* almost equal. 



(5) A. cruciata, v. Linstow (v. Linstow (12), p. 29) from 

 Metapoceros cornntus, Daud. Haiti, $ 6"2 mm. 



(6) A. fasciolata, Gendre. (Gendre. (4), p. 30). I have not 

 been able to obtain a copy of this article. 



7. Physaloptera, sp. Larva. 

 (PI. xxii, figs. 50-51.) 



Two specimens were found encysted in the wall of the urinary 

 bladder of Bufo stomaticus, Liitken {=B. andersoni, Blgr.') at 

 Lucknow. The cyst wall consisted of an outer capsule of loose 

 connective tissue and an inner membranous capsule. The embryo 

 was coiled up within the cyst 



The measurements of one specimen are given in table VII, p. IQO. 



The body (fig. 50) tapers slightly and gradually toward the 

 head, abruptly at the conical tail. 



The head (fig. 51) is surmounted by two lateral lips, each of 

 which bears a nipple- shaped tooth at its apex. Each lip is shaped 

 roughly as the half of a hemisphere, the two lips together forming 

 a hemisphere. On the inner aspect of each lip a flat triangular 

 area (i) projects slightly inwards, the apex of which forms the 

 tooth referred to. The outer aspect of each lip bears two papillae, 

 one subdorsal, one sub ventral. The third, lateral, pair of papillae, 

 which occur in PJiysaloptera have not been distinguished in this 

 larva. Even m the adults of the genus they are however flat in 

 contrast with the raised submedian papillae. The two circular 

 spots marked 2 and 3 are situated on the internal face of the left 

 lip, (2) in the base of a flagellum. 



The anus is a narrow slit. 



The rudimentary vulva (?) a transverse slit-like depression in 

 the cuticle, is situated somewhat behind the midpoint of the body. 



The rings of the cuticle are highly irregular. 



The oesophagus is divided into two sections; (i) Anterior 

 shorter section — ^muscular and with lumen lined with cuticle ; the 

 anterior end somewhat broader than the remainder and forming 

 the floor of the interlabial space. The nerve ring surrounds this 

 portion. (2) Posterior longer section somewhat narrowed anteriorly , 

 but uniform in diameter for the greater part of its length. Histo- 

 logical structure shows a parenchymatous appearance. The lumen 

 is not lined by cuticle. 



1 See Annandnle, Rec. hid. Miis. HI. p. 283. 



