PLATE LXXX. 



Cassidulus (Pygorhynchus) gouldii (Bouve) (p. 171). 

 U. S. Nat. Mus'. 137904, specimen B. 



Figure la. Upper surface of the test, 

 lb. Lower surface of the test, 

 lc. Lateral surface of the test. 

 Id. Posterior surface of the test, 

 le Part of floscelle, X 5. 

 If. Part of one ambulacrum. X 5|. 



Cassidulus (Pygorhynchus) gouldii (Bouve) (p. 171). 

 U. S. Nat. Mus. 137904a, specimen 0. 



Figure 2a. Upper surface of the test. 

 2b. Lower surface of the test. 

 2c. Lateral surface of the test. 

 2d. Posterior surface of the test. 



Cassidulus (Pygorhynchus j alabamensis Twitchell, n. sp. (p. 172). 

 Johns Hopkins Univ., type. 



Figure 3a. Upper surface of the test. 

 3b. Lower surface of the test. 

 3c. Lateral surface of the test. 

 3d. Posterior surface of the test. 



39800°— 15 26 



