EXPLANATION OF PLATE 40 



Figures approximately natural size. 



Fig. la. Catopygus(?) cajonen^is Kew, n. sp. Holotype, specimen 11344, 

 Univ. Calif. Coll. Invert. Pal. Upper surface of a poorly preserved specimen. Big 

 Eock Creek, Los Angeles County, Calif., Univ. Calif, loe. 2249. Martinez group, 

 Lower Eocene. 



Fig. lb. Caiopygus{?) cajonensis Kew, n. sp. Same specimen. Lower sur- 

 face of test. 



Fig. Ic. Catopygus{?) cajonensis Kew, u. sp. Same specimen. Lateral sur- 

 face of test. 



Fig. 2a. Catopygus{?) calif ornicus Kew, n. sp. Holotype, specimen 11014, 

 Univ. Calif. Coll. Invert. Pal. Upper surface of a poorly preserved cast. Contra 

 Costa Hills, Contra Costa County, Calif., Univ. Calif, loc. 3140. Chico formation. 

 Upper Cretaceous. 



Fig. 2b. Caiopygus{?) calif ornicus Kew, u. sj). Same specimen. Lower 

 surface of test. 



Fig. 2c. Caiopygus{?) calif ornicus Kew, n. sp. Same specimen. Posterior 

 surface of test. 



Fig. 2d. Catopygus{?) calif ornicus Kew, n. sp. Same specimen. Lateral 

 surface of test. 



Fig. 3a. Epiaster depress-us Kew, n. sp. Cotype, specimen 11011. Univ. 

 Calif. Coll. Invert. Pal. Upper surface of test. Northern California. Chico 

 formation. Upper Cretaceous. 



Fig. 3b. Epiaster deprcssus Kew, n. sp. Specimen 11011. Lateral surface 

 of test. 



Fig. 3ft Epiaster deprcssus Kew, n. sp. Cotype, specimen 11339, Univ. Calif. 

 Coll. Invert. Pal. LTpper surface of test. Northern California. Chico formation. 

 Upper Cretaceous. 



Fig. 2>d. Epiaster deprcssus Kew, n. sp. Specimen 11339. Lower surface 

 of test. 



Fig. 4fl. Hcmiaster calif ornicus W. B. Clark. Specimen 11013, Univ. Calif. 

 Coll. Invert. Pal. Upper surface of test. Santa Ana Mountains, Orange County, 

 Calif., Univ. Calif, loc. 2139. Chico formation, Upper Cretaceous. 



Fig. 4&. Memiaster calif ornicus W. B. Clark. Same specimen. Lower surface 

 of test. 



Fig. 4c. Memiaster calif ornicus W. B. Clark. Same specimen. Lateral surface 

 of test. 



Fig. 5a. Hemiaster alamcdensis Kew, n. sp. Holotype, specimen 11009, Univ. 

 Calif. Coll. Invert. Pal. Contra Costa Hills, Contra Costa County, Calif., Univ. 

 Calif, loc. 3140. Chico formation. Upper Cretaceous, and Knoxville, Lower Cre- 

 taceous. 



Fig. 5b. Hcmiaster alamedensis Kew, n. sp. Same specimen. Lower surface 

 of test. 



Fig. Of. Hemiaster alamedensis Kew, n. sp. Same specimen. Lateral surface 

 of test. 



Fig. 5d. Hemiaster alamcdensis Kew, n. sjx Same specimen. Posterior sur- 

 face of test. 



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