EXPLANATION OF PLATE 16 



Figures approximately natural size. 



Fig. la. Astrodapsis whitneyi Remond. Specimen 11004, Univ. Calif. Coll. 

 Invert. Pal. Upper surface of test. Contra Costa County, Calif., Univ. Calif, 

 loc. 1227. Upper San Pablo group, Upper Miocene. 



Fig. lb. Astrodapsis whitnei/i Eemond. Same specimen. Lateral surface 

 of test. 



Fig. 2a. Astrodapsis coaUngaensis Kew, n. sp. Holotype, specimen 11355, 

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

 County, Calif., Univ. Calif, loc. 3076. Upper San Pablo group (Santa Margarita 

 formation), Upi)er Miocene. 



Fig. 2b. Astrodapsis coaUngaensis Kew, n. sp. Same specimen. Lateral 

 surface of test. 



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