320 
APPENDIX. 
CATALOGUE—Continued. 
No. 
Name. 
Locality. 
Ocoya or Pose ereelv _ 
64 
Area-?__ 
65 
Solen-?... 
66 
Dosinia-— ?._..._-----_-_-_------------_ 
67 
V Gnus — -?_______-_,_..._ 
68 
Cy there a decisa ? Con_ - -- -- -_------------_-_ 
.do.... 
69 
Ostrea-___----------------_ 
San Fernando....._ 
70 
Peeten-_------------_____---------__ „ _ 
......do........ 
71 
Turritella biseriata, (nov. sp. ?) Con_ 
72 
Trochus-?____ 
Benicia_ 
73 
Turritella-?. 
74 
Buccinum inter striatum. ?__---------------_-_ 
San Pedro_ 
75 
Anodonta Californiensis. Lea - - -- -- -- -- -_-___ 
Colorado desert_ 
DESCRIPTIONS OF FOSSIL SHELLS FROM THE EOCENE AND MIOCENE FORMATIONS OF CALIFORNIA. 
I. EOCENE. 
CARDIUM, Lin. 
1. C. linteum, Conrad, Pl. II, fig. 1.—Cordate, ventricose subequilateral, wif!i closely 
arranged radiating lines, umbonal slope subcarinated ; posterior submargin with closely arranged 
smooth striae, fine, but much larger than those of the disk. 
Locality. —Canada de las Uvas. Allied to G. Nicolleti, Con., but very distinct. 
DOSINIA, Scopoli. 
2. d. alta, Con., PI. II, fig. 2.—Elevated equilateral? posterior side short; disk with fine 
closely arranged concentric lines, becoming large towards the base ; posterior extremity obtuse, 
direct. 
Locality. —Canada de las Uvas, with the preceding. 
MERETRIX, Lam. CYTHEREA, Lam. 
3. m. uvasana, Con. PI. II, fig. 3.—Suboval convex, inequilateral, margins rounded ; beaks 
distant from anterior margin; disk with concentric, rather distant ribs, which were probably 
laminiform when perfect. 
Locality. —Canada de las Uvas. 
There is but one broken valve of this species, in hard sandstone and with the ribs broken off. 
4. M. Californian A, Con., PI. II, fig. 4. —Subcordate, ventricose, inequilateral; posterior 
extremity truncated somewhat obliquely inwards ; basil margin nearly straight in the middle ; 
lunule lanceolate ; anterior extremity acutely rounded. 
Locality. —Occurs at the Canada de las Uvas, with the preceding species. Allied to M. 
Poulsoni, Con. 
CRASSATELLA, Lam. 
5. c. uvasana, Con., PI. II, fig. 5.—Subtriangular, compressed, concentrically sulcated above, 
