294 



Memoirs of the Indian Museum. 



[Vol. VII, 



The females measure from 38 to 40 mm. in length and i'i to 1*2 mm. in thick- 

 ness ; the males about 35 mm. and i'i mm. respectively. The head measures from 



0-27 to 0-28 mm. in diameter. The dorsal 

 lip is shorter and broader than the two 

 ventro-lateral lips, and carries two papillae. 

 The oesophagus measures from 2*1 to 2*3 

 mm. in length, and is encircled by the nerve- 

 ring at a distance of 0*46 mm. from the 

 head. The excretory pore opens at about 

 069 to 07 mm. from the anterior end. 

 A series of 27 pairs of cervical papillae, 

 similar to those described in A. columbae 

 above, extends from a point about 0*9 mm. 

 from the head backwards for a distance of 

 6'o to 6*5 mm. The anterior pairs are 

 placed just dorsally to the cervical alae,and 

 the distance between successive pairs varies 

 from 0-15 to 03 mm. The tail of the male 

 is furnished with 13 pairs of papillae, of 

 which 7 are postanal and 6 preanal. Von 

 Linstow (1901 b) described 7 postanal pairs 

 and 2 preanal, while Gedoelst (1916) in 

 assigning specimens to this species describes 

 3 pairs of preanal papillae. The arrange- 

 ment of the papillae in our material is shown 

 in fig. 30. Gedoelst also mentions that the sucker does not possess the " unpaired 

 papilla " on its posterior border. In the specimens we have examined this structure 

 was easily detected in some and in others apparently absent. The spicules are long 

 and slender and measure 0-95 mm. in length and 0*042 mm. in width. They are 

 alate. The anus is situated at about 0-62 mm. from the tip of the tail. 



The vnlva of the female is situated about 20 mm. from the anterior end, and is 

 slightly salient. There is a short transverse vagina. The ova measure 0-085 x 0-058 

 mm. The tail measures 0-7 mm. in length. 



Ascaridia stroma (von Linstow, 1899). 



Von Linstow described this species from Grus paradisea. The present collection 

 furnishes us with specimens from the common crane (Grus communis) and the sarus 

 (Grus antigone), 



Genus Strongyluris, A. Müller, 1894. 



Strongyluris chamaeleonis, sp. nov. 



(Figs. 31-33- ) 

 Host : Chamaeleon vulgaris * (Zoological Garden, Calcutta). 

 This is a small species, measuring 6*3 mm. in length in the male, 8-4-8-75 mm. in 



Fig. 30. — Ascaridia 

 ventral view. 



cristata. Tail of male ; 



