• Abra sp. * 



■ Aequipecten phrygium 



a Aligena elevata 



% 



Figure 3. — Geographic distribution of Abra sp., Aequipecten phrygium, and 

 Aligena elevata. 



Figure 4. — Geographic distribution of Anadara ovalis and Anadara transversa. 



69 



