PLATE XXV. 



Micropsis lineatus Clark, n. sp. (p. 63). 

 U. S. Nat. Mus. 31198, type. 



Figure la. Upper surface of the test, 

 lb. Lower surface of the test, 

 lc. Lateral surface of the test. 



Holectypus planattjs Roemer (p. 65). 



U. S. Nat. Mus. 12236, figured specimen A. 



Figure 2a. Upper surface of the test restored. 

 2b. Lower surface of the test restored. 

 2c. Lateral surface of the test restored. 

 2d. Two interambulacral plates, X 3. 

 2e. Portion of the ambulacrum, X 5. 

 2f. Apical system, X 5. 



Holectypus planatus Roemer (p. 65). 



U. S. Nat. Mus. 12236, figured specimen B. 

 Figure 3a. Upper surface of the test. 

 3b. Lower surface of the test. 

 3c. Lateral surface of the test. 



Holectypus planatus Roemer (p. 65). 



Johns Hopkins Univ. T 3008, figured specimen D. 



Figure 4. Lateral surface of the test. 

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