PLATE XCVII. 



Agassizia porifera (Ravenel) (p. 212). 



Am. Mus. Nat. Hist. 



Figure la. Upper surface of the test, 

 lb. Lower surface of the test. 

 lc. Posterior surface of the test. 

 Id. Lateral surface of the test. 



ECHINOCARDITTM ORTHONOTUM Conrad (p. 213). 

 Acad. Nat. Sci. Philadelphia 1079. 



Figure 2a. Upper surface of the test. 

 2b. Lower surface of the test. 

 2c. Lateral surface of the test. 

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