EXPLANATION OF PLATE 32 



Figures approximately natural size. 



Fig. 1. Dendrastcr excentricus ( Eschseholtz ) . Specimen 12164, Univ. Calif. 

 Coll. Invert. Pal. Upper surface of test, showing variation in petals. Eecent. 



Fig. 2. Dendraster excentricus (Eschseholtz). Specimen 12165, Univ. Calif. 

 Coll. Invert. Pal. Upper surface of test, showing variation in petals. Eecent. 



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