GEOLOGY — DESCRIPTION OF FOSSILS. 73 



and striate, and having fine, undulated, transverse lines ; mouth small, oblique ; upper part of 

 the tube oblique, deeply indented or Balaniform, and coarsely striated longitudinally. Length 

 8 inches, 



Locality. — Monterey county, California. — A. S. Taylor. Growing in clusters like Balani. 

 No sutures, indicating separate valves ; cells very thin plates, convex surface downwards. 



PANDORA, lam. 



Pandora bilirata, PI. V., fig. 25, Conrad. — Proceed. Acad. Nat. Sciences for 1855, vol. vii, 

 p. 267. 



Locality. — Santa Barbara, Cal. 



CARDITA, Brug. 



Cardita Occident alls, PI. V., fig. 24, lb. 

 Locality. — Santa Barbara. 



DIADORA, . 



Diadora crucibidiformis, PI. V., fig. 23, lb. 

 Locality.— Santa Barbara, Cal. 



10 Y 



t 



