116 
Stilesia gloMpunctata 
canal (c.s.) and the uterine duct {u.d.) and joins them dorsally and 
median to the ventral canal. The seminal canal runs straight from 
the point of its junction with the oviduct to the vagina (v.), which, as 
already stated, appears to be always dorsal to the cirrus pouch. The 
uterme duct, after branching off from the canalis seminalis and oviduct, 
turns ventrally and connects with the developing uterus (zit.), which, 
Dorsal Surface 
Ventral Surface 
Fig. 1. Diagrammatic transverse section of Stilesia globipunctata (Eivolta). 
Dorsal Surface 
o.d. 
Fig. 2. Diagrammatic transverse section of Stilesia hepatica Wolffhiigel. 
List of abbreviations; v.c. ventral canal; d.c. dorsal canal; n. nerve; t. testes; 
v.d. vas deferens; c.p. cirrus pouch; ov. ovarium; ut. uterus; o.d. oviduct; u.d. uterine 
duct; i.u.d. inter-uterine duct; c.s. seminal canal; v. vagina. 
as it comes into function, lies lateral to the ovary. The ovary 
disappears very soon after the uterus has commenced to function, but 
the oviduct persisting for some time marks the place where the ovary 
used to be. An inter-uterine duct apparently functions for a short 
time only {i.u.d.), the portions nearest to the uterus being most 
readily made out. The paruterine organs appear to develop in this 
