HELMINTHES : COLOMBO MUSEUM. 165 



Three females, 15, 34, and 36 mm. long, 0-79-l'25 mm. wide. 

 Cuticle annulate ; behind the lips the annulation is so deep 

 that the contours appear fringed. Lips with intermediate lips; 

 without teeth ; dor,sal lip semi -circular, -083 mm. x -11 mm.* 

 the two papillfe lie in front ; intermediate lips obtusely conical, 

 attenuate from the middle, with an outer groove. (Esophagus ^, 

 acuminate tail 4V-t Eggs thin-shelled, spherical, "065 mm.; the 

 small vitellus distant from the shell. 



3. — Ascaris coronata, n.sp. 

 PI. I., fig. 3. 



From the oesophagus and stomach of the Nestling Pond 

 Heron, Ardeola Grayi, Sykes ; Tissamaharama. 



Cuticle narrowly annulate ; lips edentulous with large trian- 

 gular interlabia ; dorsal lips nearly circular, '065 x -078, with two 

 inner anterior prominences ; papillae anterior ; oesophagus ^. 



Male, 17 x -79 ; tail conical, very short, xsa* ^^ each side of 

 the caudal extremity 17 prae-anal papillae in a row becoming 

 more closely placed behind ; post-anal papillfe absent ; the cirri 

 are 2*37 mm. long, straight, the end bent falciform. 



Female, 26 x 1*5 ; tail rounded, anus nearly terminal ; at the 

 posterior end a small finger-shaped appendix ; the vulva lies in 

 front of the middle, dividing the body in the ratio 7 : 15 ; eggs 

 immature. 



4. — Ascaris brachycJieilos, n.sp. 

 PI. III., fig. 48. 



From intestine of Tropidonotus asjjerrinms, Boulenger ; 

 Colombo. 



Cuticle smooth ; lips depressed, dentiferous, with small conical 

 interlabia ; pulp emarginate ; papillse large ; dorsal lip 

 •078 X "177 ; oesophagus yV - tV ; t^il ^^ male ^^-r^, in female ^hoi 

 rounded in both sexes carrying a small terminal appendix. 



Male, 55 x '83 ; cirri broad, curved like a sabre, rounded at 

 the end, 1*19 x -035 ; at each side of the tail three very small 

 pras-anal and two post-anal papillse ; the last of the latter lies 

 dorsally exactly at the hinder end of the body dorsad of the 

 styliform appendix. 



Female, 104 x 1*58 ; anus nearly terminal ; vulva near the 

 end of the anterior third, dividing the length in the ratio 14 : 39 ; 

 eggs spherical, thick-shelled, closely beset with small granules, 

 •086 mm. 



* All measurements are in millimetres, and the length always precedes the 

 breadth. 



I These are fractions of the total body length throughout. 



