EXPLANATION OF PLATE 26 



Figures approximately natural size. 



Fig. la. Dendrastcr liesperis Kew, n. sp. Holotype, specimen 11381, Univ. 

 Calif. Coll. Invert. Pal. Upper surface of test. Coalinga district, Fresno County, 

 Calif., Univ. Calif, loc. 3004. Pecten coalingaensis zone, Uj^per Etchegoin forma- 

 tion. Middle Pliocene. 



Fig. lb. Dcndrasier hcsperis Kew, n. sp. Specimen 11381. Lateral surfaco 

 of test. 



Fig. Ic. Dcndrasier hesperis Kew, n. sp. Specimen 11382, Univ. Calif. Coli. 

 Invert. Pal. Upper surface of test. Coalinga district, Fresno County, Calif., 

 Univ. Calif, loc. 3003. Pecten coalingaensis zone, Ui^jjer Etchegoin, Middle Plio- 

 cene. 



Fig. 2a. Dcndrasier hcsperis gibbosus Kew, n. var. Holotype, specimen 11022, 

 Univ. Calif. Coll. Invert. Pal. Upper surface of test. Coalinga district, Fresno 

 County, Calif., Univ. Calif, loc. 525. Pecten coalingaensis zone. Upper Etchegoin, 

 Middle Pliocene. 



Fig. 2b. Dcndrasier liesperis gibbosus Kew, n. var. Same specimen. Lateral 

 surface of test. 



Fig. 3a. Scuta-ster andersoni Pack. Lectotype, specimen in U. S. Nat. Mus. 

 Upper surface of test. Northeast of Antimony Peak, Fresno County, Calif. Upper 

 Oligocene. 



Fig. 3&. Scuiasier andersoni Pack. Same specimen. Lateral surface of test. 



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