PLATE LXXXVIII. 



Sctjtella gabbi (Remond) Merriam (p. 189). 



Univ. California 19425. 

 Figure la. Upper surface of the test, 

 lb. Lateral surface of the test. 



Dendraster perrixi (Weaver) (p. 190). 



U. S. Nat. Mus. 165560, specimen A. 

 Figure 2. Upper surface of the test. 



Dendraster perrini (Weaver) (p. 190). 



U. S. Nat. Mus. 165560, specimen B. 



Figuhe 3a. Upper surface of the test. 

 3b. Lower surface of the test. 

 3c. Lateral surface of the test. 



Dendraster arnoldi Twitchell, n. sp. (p. 192). 



U. S. Nat. Mus. 165707, type. 

 Figure 4a. Upper surface of the test. 

 4b. Lower surface of the test. 

 4c. Lateral surface of the test. 

 4d. Posterior surface of the test. 

 39S00°— 15 27 



