PLATE XXV. 
Tetragonites teres. 
Fig. i. Lateral view. Slightly less than natural size. 
,, 2. Outline of transverse section through last whorl, where it has 
not suffered from pressure, at a diameter of 57 mm. 
Holcodiscus Faku. 
,, 3. Lateral view of type. Natural size. 
,, 4. Outline of transverse section at a diameter of 56 mm. Natural 
size. 
