168 SPOLIA ZEYLANICA. 



13. — Heterakis granulosa^ n.sp, 

 PI. III., fig. 49. 



Intestine of domestic fowl, Gallus gallinaceuSy L. ; Colombo. 



Cuticle annulate ; head with three low semi-circular lips : tail 

 pointed. 



Male, 27 x (>59 ; CBSophagus yV^ ; tail 4',, ; the two straight 

 rod-shaped cirri, 0*57 ; sucker long, oval, with a small circular 

 groove behind, and surrounded by granulations ; on each side 

 three pr^e-anal and six post-anal papillae, of which the most 

 anterior is transversely elliptical, the fourth, seventh, and ninth 

 spherical and marginal ; radial muscles pass to the sucker. 



Female, ;">5 x 0*79 ; oesophagus ^^ ; tail ^V ; vaginal orifice 

 immediately in front of the middle dividing the body in 

 the proportion 16 : 17 ; eggs thick-shelled, 0'078 x 0"042. 



14. — Strongylus digitaius, n.sp. 

 PI. I., fig. 10. 



Stomach of Bos indicus ; Colombo. 



Cuticle without longitudinal lines, but with very fine annu- 

 lation ; head attenuate, mouth surrounded by four papillae ; 

 (Esophagus of male ^, of female ^V ; the nerve ring surrounds the 

 oesophagus at the limit of the first and second quarters and 

 below it the porus excretorius opens. 



Male, 24 x 0*36 ; cirri very long, 4*54, coalescent throughout 

 their entire length and thickened fusiform at the end ; the 

 lateral lobes of the bursa are curved claw-like inwardly; each 

 lobe is supported by six ribs, of which one lies at the inner 

 margin, two side by side at the hinder border, and three in 

 a f^roup at the outer margin ; there is no median lobe ; the end of 

 the body is rounded with a pair of finger-shaped, slightly curved 

 hyaline cuticular lobes. 



Female, 29 x 0'47 ; genital orifice lies far back dividing the 

 body in the ratio 8:1; tail pointed, 1 J « ; eggs 0'097 x 0*053. 



Eleven species of Strongijlus have been found in Bos 

 taurus^ the European domestic ox ; ten of them have short cirri; 

 only Strongylus filicoUis, Rud., has long cirri, but in this species 

 the cuticle shows 18 longitudinal ridges. 



15. — KaUce2)halus willeyi,v. Linst. 



Rectum of Typldops hraminus^ Russell ; Colombo. 

 Cf. 0. V. Linstow, Spol. Zeyl., vol. I., part IV., 1904, pp. 99-100 

 pi. I., figs. 14-18. 



