210 



STEONGYLUS FILAEIA, Ead. 



Plate XXXIV. 



Fig. 1. Adnlt female, XS: a, head; b, vulva. 



Fig. 2. Adult male, x3: a, head; i, bursa and spicula. The dark line in Figs. 1 



and 2 is the intestine. 

 Fig. 3. Cephalic end : a, mouth ; t, eesophagus ; c, intestine ; d, unicellular glands. 

 Fig. 4. Middle portion of female : a, vulva ; b, vagina ; c, c, uteri with developing 



eggs. 

 Fig. 5. Piece of skin showing strise. 

 Fig. 6. Spicula: o, the fenestrated chitinous cylinders ; S, the bulb like enlargement 



of the surrounding membrane. 

 Fig. 7. Caudal end of female : a, anus ; b, b, intestine ; c, loop of the caudal uterus. 



d, ovary. 

 Fig. 8. Caudal end of male, ventral view : o, intestines ; Z>, seminal reservoii ; c, the 



torn edges of the spread bursa ; d, ventral costae ; e, ventro-lateral ; /, 



lateral ; g, dorso-lateral ; h, dorsal ; i, spicula. 

 Fig. 9. The same lateral view. 



Fig. 10. a, female, natural size ; b, male, natural size. 



Fig. 11. Eggs showing various stages of development of embryo in the following 

 order : a,b,c,d; e, embryo escaped from shell. 



