EXPLANATION OF PLATE 25 

 Figures approximately natural size. 



Fig. la. Dcndraster jacalitosensis Kew, n. sp. Holotype, specimen 11034 

 Univ. Calif. Coll. Invert. Pal. Upper surface of test. North side of Eeef Ridge, 

 Tar Canon, Fresno County, Calif., Univ. Calif, loc. 2954. Lower beds of Lower 

 Etchegoin (Jacalitos) formation, Lower Pliocene. 



Fig. lb. Dcndraster jacalitosensis Kew, n. sp. Same specimen. Lateral sur- 

 face of test. 



Fig. 2a. Dcndraster gihhsii (Remond). Specimen 11021, Univ. Calif. Coll. 

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

 Etchegoin formation, Pliocene. 



Fig. 2b. Dcndraster gibbsii (Eemond). Specimen 11380, Univ. Calif. Coll. 

 Invert. Pal. Lower surface of test. Coalinga district, Calif. Etchegoin for- 

 mation, Pliocene. 



Fig. 2c. Dcndraster gibbsii (Remond). Specimen 11021, Univ. Calif. Coll. 

 Invert. Pal. Lateral surface of test. 



Fig. 3a. Dcndraster gibbsii Immilis Kew, n. var. Holotype, specimen 11379, 

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

 County, Calif., Univ. Calif, loc. 1772. Upper Etchegoin formation, Middle Plio- 

 cene. 



Fig. 3';. Dcndraster gibbsii humilis Kew, n. var. Same specimen. Lateral 

 surface of test. 



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