EXPLANATION OF PLATE 16 



Fauna of Martinez Eocene 

 Fig. 1. Fusus aequilateralis Weaver. X 2. 



Fig. 2. Fusus mathewsonii Gabb. X 1. 

 Eange Tejon and Martinez. 



Fig. 3. Fusus occidentalis Gabb. X 1. 



Fig. 4. Fusus aratus 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. X 11 



Fig. 9a. Turris louderbacTci, n. sp. X 1. 



Fig. 96. Turris louderbaclci, n. sp. XI. 



Fig. 10. Surcula merriami, 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. X 1. 



Fig. 136. Surcula, sp. X 1. 



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