iy2 



STRONGYLUS OVIS-PULMONALIS, Diesiug. 

 Plate XXIX. 



Fig. 1. Cephalic eud : a, (Bsopbagiis; h, iutestine. 



Head with papilliu. 



Caudal end of female: a, anus; b, vulva; c, vagina; d, d, uteri; c, e, ovi- 

 ducts; /, /, ova; g, g, intestine. 



Middle of female with tail of male coiled around her. 



Spiculum: a, cylindrical part of the slieletou; h, spatulate ribbed part ; c, 

 wing of tube: d, membranoua tip. 



Spicula as they fit together. 



Adult male and female, X6. 



Caudal end of male: a, spicula. 



Male bursa with appressed costje. 



Male bursa with separated costie and spicula in situ. 



Caudal end of female, lettered as in Fig. 3. 



