460 Mr. H. A. Baylis on new 



anterior of the preanal papillae are situated at the sides of the 

 sucker, a little in front of its middle. 



In tlie female the tail is 0*8 mm. in length. The vulva is 

 situated in the middle third of the body, at 5-8 mm.Jrom the 

 anterior end. The ova measure 65 x 52-5 yu,-75 x 55 jx. The 

 uterus extends back beyond the anus into the cavity of the 

 tail. 



Fig. 2. 



Suhidura plotina ; tail of male, lateral view. 



A.P., accessory piece ; Sp., Spicules ; 1-6, postanal papillae ; 7, paranal ; 

 I-III, preanal papillas. 



3. Filaria sp. 



Host : Merops alhicoUis. (Bee-eater.) 



Of this form there is only one specimen, a female. The 

 total length is 31 mm., the maximum thickness about 

 0'5 mm. The mouth is apparently without lips or papillse. 

 A pair of 3-lobed glands open into the cavity of the mouth 

 laterally. The vulva is situated at O'-i mm. from the ante- 

 rior end. The position of the anus has not been made out. 



