72 MOLLUSCA IN THE MaYA LoWLANDS 



Pl. 5 — CYPRAEIDAE, OVULIDAE 



a. Cypraea cervus Linne (M-437), aa (6268). 



b. Cyphoma gihbosum Linne (Q-500), bb (2673). 



c. Cypraea zebra Linne (Q— 500), cc (6017). 



d. Cypraea cinerea Gmelin (Q— 500), dd (6975). 



(Actual size) 



I 



