STANTON : THE MARINE CRETACEOUS INVERTEBRATES. 
EXPLANATION OF PLATE V. 
PAGE 
Astarte peralta Stanton . . . . . . . . - . 22 
Fig. 1. Hinge of right valve. 
Fig. 2. Exterior of same specimen. 
Astarte postsulcata Stanton ......... 23 
Fig. 3. Interior of thin right valve. 
Fig. 4. Exterior of a similar valve. 
Fig. 5. Dorsal view of an example with thicker valves. 
Fig. 6. Hinge of a thick left valve . 
Fig. 7. Exterior of same specimen. 
All figures on this plate are of natural size. 
(VOL. iv) 
