Arnold] FOSSIL, MOLLUSKS FROM CALIFORNIA 445 



9. Leda orcutti, new species. Cat. No. 165,271, U. S. N. M. Type. 



View of exterior ; longitude, 7 mm., X 3. Waldorf asphalt mine ; 

 locality No. 4473. 

 10. Tapes tenerrima Carpenter. Cat. No. 165,293, U. S. N. M. View of 

 exterior of left valve; longitude, 83 mm. Alcatraz asphalt mine, 

 near Sisquoc; locality No. 4471. Common in the Pliocene; also 

 known recent farther north. 



Plate LVI 



Fernando {Pliocene) Fossils 



Fig. 1. Spisula sisquocensis, new species. Cat. No. 165,292, U. S. N. M. 

 Type. View of exterior of left valve; longitude, 120 mm., X y 2 . 

 Alcatraz asphalt mine, near Sisquoc; locality No. 4471. 



2. Clidiophora punctata Carpenter. Cat. No. 165,302, U. S. N. M. 



View of exterior of right valve; longitude, 36 mm. Graciosa 

 Ridge, near Orcutt; locality No. 4476; also known recent. 



3. Clidiophora punctata Carpenter. Cat. No. 165,283, U. S. N. M. 



View of interior of left valve ; longitude, 35 mm. Graciosa Ridge, 

 near Orcutt; locality No. 4476. 



4. Venericardia califomica Dall. Cat. No. 165,274, U. S. N. M. Alti- 



tude, 29 mm. ; aperture view. Waldorf asphalt mine ; locality No. 

 4473. A magnificent species common in and characteristic of the 

 lower Pliocene. 



5. Cumingia califomica Conrad. Cat. No. 165,311, U. S. N. M. View 



of exterior of left valve ; longitude, 17 mm., X 2. Fugler Point 

 asphalt mine, near Gary; locality No. 4475; also known recent. 



6. Spisula callillif 'ormis Conrad, var. alcatrazensis, new variety. Cat. 



No. 165,291, U. S. N. M. Type. View of exterior of right valve ; 

 longitude, 128 mm., X ^2. Alcatraz asphalt mine, near Sisquoc; 

 locality No. 4471. 



7. Bathytoma carpenteriana Gabb, var. fernandoana, new variety. Cat. 



No. 165,303, U. S. N. M. Type. Altitude, 24 mm.; aperture 

 view. Graciosa Ridge, near Orcutt; locality No. 4476. 



8. Phacoides annulatus Reeve. Cat. No. 165,286, U. S. N. M. View of 



exterior of right valve ; longitude, 45 mm. One mile north of 

 Schumann ; locality No. 4474. Common in the Fernando, and also 

 found recent in southern waters. 



ga. Phacoides intensus Dall. Cat. No. 165,260, U. S. N. M. View of 



exterior of left valve; altitude, 6.5 mm., X 4. Waldorf asphalt 

 mine ; locality No. 4473. Found in lower Pliocene as far south 

 as San Diego. 



gb. View of interior of same specimen, X 4. 



10. Ostrea veatchii Gabb. Cat. No. 165,282, U. S. N. M. View of ex- 



terior of left valve; altitude, 96 mm. One mile north of Schu- 

 mann ; locality No. 4474. Found in same horizon as far south as 

 San Diego. 



