STURGES. 



[VOL. I. 



tinuous with the cuticle, but lacks its wartlike thickenings. 

 Underlying the cuticle is the subcuticula, which consists of 



FIG. i. Ventral view, eg, cerebral ganglion; ev, excretory vesicle; Lti, Laurer's duct; oo, 

 ootype ; ov, ovary ; fed, primary excretory duct ; sed, secondary excretory duct ; sz>, seminal 

 vesicle; t, testis ; ted, tertiary excretory duct; , uterus; vtg, vitelline gland; y-z, uterus 

 upon right side, omitted in figure. 



