PLATE VII I. 
ScJiloenbachia Umbiilazi Baily sp. 
var. Griesbachi v. Hoepen. 
1. Lateral view of a large specimen. Nat. size. 
2. Anterior view of same. Less than nat. size. 
3. Lateral view of a smaller specimen. Nat. size. 
4. Anterior view of same. Less than nat. size. 
5. Lateral view of a specimen with more conspicuous ribs. Nat. size. 
ScJiloenbachia Umbula.zi Baily sp. 
forma typica. 
6. Lateral view of a thick specimen. Nat. size. 
7. Anterior view of same. Nat. size. 
8. Lateral view of a thin specimen. Nat. size. 
9. Anterior view of same. Slightly less than nat. size. 
