EXPLANATION OF PLATE 31 



Figures approximately natural size. 



Fig. la. Dcnclraster exccntricm (Eschseholtz). Specimen 12163, Univ. Calif. 

 Coll. Invert. Pal. Upper surface of test. Recent. 



Fig. Ih. Dendraster excentricus (Esclischoltz). Same specimen. Lateral sur- 

 face of test. Recent. 



Fig. Ic. Dendraster excentricus (Eschseholtz). Same specimen. Lower sur- 

 face of test. Recent. 



[214] 



