FIG. ii2. Hirildo quinquestriata. Dissection from the dorsal aspect, a. anus; 

 br. brain ; cr.f, first diverticulum of crop, contracted ; cr.i ', the same expanded ; 

 cr. //, the last diverticulum of the crop, contracted ; cr. //', the same expanded ; 

 d, ej. ductus ejaculatorius ; gn. i 23, ganglia of ventral nerve-cord ; int. in- 

 testine ; /. T'. lateral vessel ; nph. i //?, nephridia ; ov. s. ovarium sac ; p. penis ; 

 ph. pharynx ; /. s. posterior sucker ; ret. rectum ; st. stomach ; ts, / 9, testes ; 

 va. vagina ; i>. d. vas deferens ; v . sent, vesicula seminalis. 



