NBMATODA IN THE COLOMBO MUSEUM. 103 



the tail two prae-anal, one large par-anal, and three post-anal 

 papillae. 



The length of the female amounts to 25-28 mm., with breadth of 

 1*2-1'3 mm. : the tail measures 4^^ of the length of the body; the 

 vagina opens behind, dividing the body in the proportion of 50 : 

 11 ; the eggs are O'OGT) mm. by 0'042 mm. in size ; they have thin 

 shells, and their surface is beset with fine granulations. 



FiLARIA. 



Belongs to the Polymyaria and the Resorbentes ; elongated 

 Nematoda ; low and broad lateral fields, which generally occupy ^ 

 of the circumference of the body ; excretory pore absent ; caudal 

 end of the male generally spiral ; two unequal cirri ; at the tail end 

 two rows of papillfe, on each side four prte-anal ; in the female the 

 vulva lies quite in front. 



The species occur in Vertebrata, especially mammals and birds, 

 in all organs except in the digestive tract. 



22. — Filaria vivi2Kira, n.sp. 



From the peritoneum of Corvus sjjlendetis, Vieillot, Colombo. 



The material only contained females, 16-21 mm. long and 

 0'32 mm. broad ; the oesophagus measures aV? the tail -^V of the 

 total length ; the generative orifice lies in front 1-5-1*8 mm. 

 from the cephalic extremity ; the eggs with membranous chorion 

 measure 0*039 mm. by 0*031 mm, ; the species is viviparous,* 

 and the uterus and vagina were filled with immense numbers of 

 embryos. Both ends of the body are rounded ; on each side of 

 the head a small papilla ; lateral fields ^ of the periphery. The 

 embryos are 0"04:3-0*364 mm. long and 0-0052 mm. broad, 

 relatively very long and slender ; the head of the embryo is 

 rounded, the tail pointed, and no internal organs can be distin- 

 guished. 



Presumably the embryos penetrate into the vascular system of 

 the bird, where they live as blood-filarite. 



* See "Spolia Zeylanica," part II.. p. 28 



