148 



STEONGYLUS FILICOLLIS, Eud. 



Plate XIX. 



Fig. 1. Adult male, natural length indicated by line : a, head ; 6, bursa and spicula ; 



c, worm enlarged twice. 



Fig. 2. Adult female, natural length indicated hy line: a, head; b, vulva; c, anus; 



d, worm enlarged twice. 



Fig. 3. Head: a, mouth surrounded by four papilla;; 6, oesophagus; c, inflated sl<iii 

 surrounding head and neck. 



Fig. 4. Skin : shows nine of the eighteen longitudinal lines. 



Fig. 5. Cephalic end: a, the head; b, the oesophagus; c,c, the unicellular gland 

 ducts. 



Fig. 6. Bursa: a, the spicula; b, their knobbed tips. 



Fig. 7. Portion of the spicula enlarged. 



Fig. 8. Ovary of female with Inclosed eggs showing segmentation. 



Fig. 9. Bursa spread out : «, veutral costoe ; 6, veutro-lateral ; c, lateral ; d, dorso- 

 lateral ; c, dorsal. 



