PLATE C. 

 ANATOMY. 

 Sections. 



Fig. 1. Sagittal central section of Hericia Robini, ? , 

 X 285. A small portion of the passage 

 between the receptaculum seminis and the 

 ovary is seen ; it passes behind the rectum. 

 Part of the genital (splanchnic) nerve is seen 

 springing from the posterior corner of the 

 sub-oesophageal ganglion. 



2. Transverse section of Hericia Robini, <$ ; the 



plane passes through the posterior part of 

 the colon, X 150. 



3. Transverse section of Glycyphagus platygasler, 



<$ . The plane passes through the anterior 

 portion of the supra-oesophageal ganglion, 

 X 225. 



4. Transverse section of a portion of the external 



cuticle of the side of Glycyphagus platygaster, 

 ? . The plane passes through the vulva, 

 X 500. 



5. Ventral portion of a transverse section of 



Glycyphagus platygaster, $ , to show the his- 

 tology of the accessory glands, X 150. The 

 receptacular accessory gland is shown with 

 the lumen empty. 



6. Horizontal section close to the ventral surface 



through the sternum, and first and second 

 coxae of the left side, of Rhizoglyphus echino- 

 pn$, ? ,to show the musculation, X 150. 



7. Longitudinal section through the fourth leg of 



Hericia Rubini, $ , showing the principal 

 muscles, X 150. 



8. Transverse section through the distal (pos- 



terior) part of one of the cseca of the ventri- 

 culus of Hericia Rubini, X 200. 



