EXPLANATION OP PLATE 22 



Fig. 1. Turritella porterensis sobrantensis, n, var. Type, no. 11269, Coll. 

 Invert. Palae. Univ. Calif., loe. 1131. Natural size. 



Fig. 2. Columbella (Mitrella) tenuilineata, n. sp. Type, no. 11221, Coll. 

 Invert. Palae. Univ. Calif., loc. 1131. Approximately twice natural size. 



Fig. 3. Columbella {Mitrella) tenuilineata, n. sp. Same specimen as fig. 2, 

 approximately twice natural size. 



Fig. 4. Chrysodomus? pulchrissimus, n. sp. Type, no. 11222, Coll. Invert. 

 Palae. Univ. Calif., loc. 1131. Approximately twice natural size. 



Fig. 5. Turritella diver silineata Merriam. Type, no. 11224, Coll. Invert. 

 Palae. Univ. Calif. From Carmanah Point, Vancouver Island. 



Fig. 6. Potomides (Cerithidea) branneri, n. sp. No. 11225, Coll. Invert. 

 Palae. Univ. Calif., loc. 52. Natural size. 



Fig. 7. Fusinus (Priscofusus) hecoxi Arnold. No. 11226, Coll. Invert. Palae. 

 Univ. Calif., loe. 1131, Natural size. 



Fig. 8. Sinum scopulosum (Conrad). No. 11259, Coll. Invert. Palae. Univ. 

 Calif., loc. 3. Natural size. 



Fig. 9. Act won Jcirkerensis, n. sp. Type, no. 11254, Coll. Invert. Palae. Univ. 

 Calif., loe. 76. Natural size. 



Fig. 10. Pseudoperissolax merriami, n. sp. Type, no. 11161, Coll. Invert. 

 Palae. Univ. Calif., loc. 2033. Natural size. 



Fig. 11. Agasoma acuminatum Anderson and Martin. No. 11239, Coll. 

 Invert. Palae. Univ. Calif., loc. 1310. Natural size. 



Fig. 12. Dentalium radiolineata, n. sp. Type, no. 11227, Coll. Invert. Palae. 

 Univ. Calif., loe. 1131. Natural size. 



Fig. 13. Potomides (Cerithidea) branneri, n. sp. No. 11230, Coll. Invert. 

 Palae. Univ. Calif., loc. 52. Approximately twice natural size. 



Fig. 14. Cattiostoma lawsoni, n. sp. No. 11228, Coll. Invert. Palae. Univ. 

 Calif., loc. 1131. Natural size. 



Fig. 15. Pseudoperissolax ■merriami, n. sp. Same specimen as fig. 10, natural 

 size. 



Fig. 16. Potomides (Cerithidea) branneri, n. sp. Type, no. 11229, Coll. 

 Invert. Palae. Univ. Calif., loc. 2754. Natural size. 



Fig. 17. CaJliostoma lawsoni, n. sp. Type, no. 11231, Coll. Invert. Palae. 

 Univ. Calif., loc. 331. Natural size. 



Fig. 18. Cattiostoma latcsoni, n. sp. Same specimen as fig. 17, natural size. 



Fig. 19. Agasoma gravidum Anderson and Martin. Natural size. 



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