CASSIOPEA XAMACHANA. 



201 



TABLE 1. DIMENSIONS OF SPECIMENS FROM BOTH SALT POND AND PORT ROYAL 



(VARIETIES A AND S.) 



TABLE 2. AVERAGE DIMENSIONS OF THE THREE VARIETIES, GIVEN IN THOUSANDTHS 

 OF THE AVERAGE DIAMETER OF THE UMBRELLA. 



Locality. Great Salt Pond, and mangrove swamps (" The Lakes") in the rear of 

 Port Royal, Jamaica. BIGELOW. 



(?) Moat outside Fort Jefferson on Garden Key, Tortugas Islands, and Mangrove 

 Keys, near Key West, Florida. FEWKES. 



