NEMATODA IN THE COLOMBO MUSEUM. 99 



bacillary layer ; the two halves of the male bursa are each 

 supported by ten ribs, of which the second and third lie close 

 together ; the 8th, 9th, and 10th are ramifications of one rib. 



16. — Gylichnostojnum tetracanthum, Mehlis. 



Passed by ponies on Iranativu ; the animals succumbed to 

 enteritis, anaemia, and exhaustion. Presented by G. W. Sturgess, 

 Esq., M.R.C.V.S. 



Syn. Strongylus tetr acanthus, Mehlis ; Sclerostomum tetracan- 

 thum, Wedl. ; Gyathostomum tetracanihum, Molin. 



See A. Looss. The Sclerostomidse of horses and donkeys in 

 Egypt, Cairo, 1901, p. 124, tab. IV., VI.-XI., XIII. 



Triodontophorus. 



Strongylidae, Meromyaria, Secernentes ; large buccal capsule 

 with six papillae, two lateral and four sub-median ; mouth 

 surrounded by bristles ; at the bottom of the capsule are three 

 teeth ; male bursa as in the preceding genus. 



17. — Triodontophorus serratus, Looss. 



From Equns caballus, L. ; passed by ponies on Iranativu. 

 Presented by G. W. Sturgess, Esq. 



Cf. A. Looss, op. cit., pp. 83-86, tab. III., figs. 31-B8. 



Kalicbphalus. 

 Head with thick- walled chitinous mouth, laterally compressed, 

 the wall traversed laterally by longitudinal tracts of parenchyma 

 with a dorsal and ventral impression ; oesophagus remarkably 

 short and broad, the posterior half thickened to form a bulbus 

 containing valves ; the male bursa is broad and trilobed, the 

 cirri are equal ; lateral lines narrow and raised, with a vessel ; 

 vulva behind the mid-body ; the genus belongs to the Strongylidae, 

 more particularly to the ISclerostomina, to the Meromyaria, and 

 Secernentes. The species live in the stomach and intestine of 

 snakes in South America and the East Indies. 



18. — Kalicephalus willeyi, n.sp. 

 PI. I., %s. 14-18. 

 From" the stomach and oesophagus of Vipera russelli, Graj^ (" tic- 

 polonga," Sinh.), Colombo and Weligatta ; and from the intestine 

 of Coluber helcna, Daud., Horana. 



The mouth cavity is large, compressed, and traversed by three 

 paired parenchymatous bands ending in front in papillae ; there 

 is a dorsal and ventral notch, rounded in front, acute behind ; 

 y 25-03 



