Pl.ATE 8 



FiGUUES 1, 2. Gyroidina orbicularis d'Orbigny. X 40. East coast of United 

 States, a, a, dorsal views; b, b, peripheral views. 

 3-8. Gyroidina soldanii d'Orbigny. East coast of United States. 

 Figs. 3 a-c, X 40. Young, a, dorsal view; b, ventral view; 

 c, peripheral view. Figs. 4 a-c, X 30. Adult, a, dorsal 

 view; b, ventral view; c, peripheral view. Figs. 5-8, Periph- 

 eral views. 

 9 a-r. Gyroidina soldanii d'Orbigny, var. nitidiila (Schwager). X 40. 

 East coast of United States, a, dorsal view; b, ventral view; 

 c, peripheral view. 

 10 a-c. Gyroidina soldanii d'Orbignj', var. altijormis R. E. and K. C. 

 Stewart. X 50. Off Fowey, Fla. a, dorsal view; b, ventral 

 view; c, peripheral view. 



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