PLATE LXX. 



SCHIZASTER ARMIGER Clai'k, Eu Rp. (p. 152). 



II. S. Nat. Mus. 141104, type. 

 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. 



SCHIZASTER Sp. (p. 152). 



Johns Hopkins Univ. T 2001. 



Figure 2. Fragment of the test showing portion of ambulacrum with adjacent interambulacmm. 



Linthia wilmingtonensis Clark, 11. sp. (p. 152). 



U. S. Nat. Mus. 106482, type. 

 Figure 3a. Upper surface of the test. 

 3b . Lower surface of the test. 

 3c. Lateral surface of the test. 



