EXPLANATION OF PLATE 16 

 Fauna of Martinez Eocene 



Fig. 



1. 



Fusus aequilateralis Weaver. X 2. 



Fig. 



O 



Fusus mathewsonii Gabb. X 1. 







Range Tejon and Martinez. 



Fig. 



3. 



Fusus occidentalis Gabb. X 1. 



Fig. 



4. 



Fusus aralus Gabb. X 1. 



Fig. 



5. 



Fusus flexuosus Gabb. X 2. 



Fig. 



6. 



Fusus dumblei, n. sp. X 2. 



Fig. 



7. 



Olivella claytonensis, n. sp. x 3. 



Fig. 



8a. 



Perissolax tricarnatus Weaver. X 1 



This species may be only a variety of P. blakei Conrad, as it is 

 found in the type Tejon along with the bicarnate form. The tricarnate 

 form is however the commoner in the Martinez. 



Fig. 8b. Perissolax tricarnatus Weaver. XI?. 



Fig. 9a. Tunis louderbacki, n. sp. X 1. 



Fig. 9b. Turris louderbacki, n. sp. X 1. 



Fig. 10. Surcula rnerriami, n. sp. X 1. 



Fig. 11. Surcula ( Surculites) andersoni, n. sp. X 1. 



Fig. 12. Surcula fairbanksi, n. sp. X 1. 



Fig. 13a. Surcula, sp. XI. 



Fig. 13&. Surcula, sp. X 1. 



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