HELMINTHBS : COLOMBO MUSEUM. 171 



Syngamns. 



Mouth with a chitinous capsule, the wall of which is enlarged 

 disc-like in front ; male small with a bursa and two equal cirri ; 

 female orifice anterior : male and female in permanent copula ; 

 Secernentes-Meromyaria ; in the trachea, bronchi, and nose of 

 birds and mammals. 



22. — Sj/ngamus trachealis, v, Sieb. 

 Trachea of domestic fowl ; Colombo. 



Cf. A.. Railliet, o/j. cit., pp. 453-455, fig. 312, also Neumann's 

 Parasites of Domesticated Animals, p. 607, fig. 318. 



2'd.-—Filaria ? Zschokkei, Meyer. 



Peritoneum of Manifi pentadactyla, L. 



Cf. Meyer, Archiv f. Naturgesch. Jahrg. Gl, Berlin, 1896, pp. 

 56-69, Taf. IV., figs. 1-9. Sexually immature. 



24. — Filaria immitis, Leidy. 



Pleural cavity of dog ; Ragama. 



Cf. A. Railliet, op. cit., pp. 509-513, figs. 354-356. 



25. — Filaria piscicola, n.sp. 



From supraorbital region of a marine fish {? Lethrinus, sp.). 



One incomplete female, 225 x 0*57 ; the diameter at the head 

 is 0*13 ; the head is rounded, destitute of lips, teeth, and papillas ; 

 the tail is lost from the specimen ; genital orifice quite anterior, 

 only 0-79 from cephalic extremity ; eggs 0*031 x 0*023 ; it is ovo- 

 viviparous ; the embryos with acuminate tail measure 0*53 x 

 0-016. 



Filarise are very rare in fishes, and it is therefore to be regretted 

 that only an imperfect description of this species can be given. 



26. — Filaria equina. Abildg. 



From eye of horse. 



Cf. A. Railliet, op. cit., pp. 524-526, figs. 364-366. 



27. — Filaria digitata, n.sp. 

 PI. III., figs. 52-55. 

 Peritoneum of J5as indices .- Colombo. 



Head with two straight teeth notched at the summit, thereafter 

 four papillae in thesubmedian lines; cuticle finely annulate; a 

 long vestibule (in the female 0*59) leads into the oesophagus, 1 

 2 A 8(17)05 



