HELMINTHES : COLOMBO MT^SEUM. 177 



.>9. — Hymenolepis septana, n.sp. 

 PI. II., fig. 21. 



Intestine of Upupa ceylonensis, Reich.; Weligatta. 



Length 25 ; the proglottids begin directly behind the scolex and 

 measure, in front, 0"13 broad x 0'022 long, farther back, 0*79 

 broad x 0*18 long ; towards the end of the chain they become 

 longer than broad, 0*35 broad x 0*48 long, the last member round- 

 ed : the dorsoventral diameter is to the transverse as 2 : 3. 



The scolex is short, 0'13 long x 0*22 broad, truncate in front ; 

 suckers 0*089 ; rostellum small and knob-shaped ; hooks absent, 

 no doubt through casual loss. On each side are two vessels, a 

 large dorsal and a small ventral ; outside these occurs the nerve. 



Bundles of longitudinal muscles appearing circular in trans- 

 verse section course beneath the thick cuticle ; calcareous bodies 

 absent. 



Cirrus-sac with inner side directed obliquely ventrally ; three 

 small oval testes lie in a row in the middle of the proglottids at 

 the dorsal side. Vagina dorsad of cirrus sac, expanding to a large 

 roundish receftacvliLm ^eminis, reaching the middle line and 

 touching the anterior margin of the segment. Ovary strongly 

 developed occupying the whole longitudinal extent of the seg- 

 ments; ventrally a broad transverse branch from which right and 

 left two broad cornua extend horseshoe-shaped towards the 

 dorsal side, leaving room for the testes, the vitellarium, and the 

 shell-gland ; the roundish vitellarium (" Dotterstock ") lies in 

 the middle line ventrad of the testes ; the small shell-gland is 

 still more ventral in position. The uterus fills the last segments 

 completely and is subdivided by dorsoventral septa ; the eggs 

 have a triple membrane, the outer 0*073 x 0*064, the inner 0*03 1 

 x 0-023. 



40. — Hymenolepis clausa, n.sp. 

 PI. II., figs. 22-23. 



Intestine of the Whistling Teal, Deiidrocygna Javanica, Horsf.; 

 Ti ssamaharama. 



Length 18 ; proglottids commence at once behind scolex, 

 measuring in front 0*053 long x 0*35 broad, behind 0*47 x 1*56. 



Scolex small, 0*10 x 0*23 ; suckers 0*10 ; rostellum hemis- 

 pherical, carrying eight hooks of 0*057 length. In the paren- 

 chyme are to be found two layers of longitudinal muscles, outer 

 small numerous bundles, inner large sparser bundles ; calcareous 

 bodies not present ; two very large vessels traverse the chain : 

 outside them the nerves. 



Genital pores absent ; on one and the same side in each pro- 

 glottid, I of the cross-diameter distant from the margin, the 



