70 The West American Scientist. 
SOME NOTES ON TERTIARV FOSSILS OF ig 
IFORNIA. 
PACIFIC BEACH. 
An exposure of a deposit of tertiary fossils occurs at Pacific 
Beach, San Diego, California, on the ocean bluff north of the 
pavillion, extending for about a mile along the ocean beach and 
from five to twenty feet above tide water. In May and June, 
1888, I made a small collection at this point, of re the follows: 
ing is a partial list:— 
livella biplicata. Lucina Nuttaliii. 
J boetica. Cerithidea sacrata. 
S sp. indet. Amphissa versicolor. 
Conus Californicus. Amycla carinata. 
surcula Carpenteriana. Dentalium hexagonum. 
Monoceros engonatum. _Cardita subquadrata. 
cs var. Spivatum. Littorina scutudata. 
Ranella Californica. Pteronotus festivus. 
Opalia anomala, Stearns. Crepidula adunca. 
a varicostata, is os unguiformis. 
Siphonalia Kellettii. Nassa coopert. 
Janira bella. ‘“  perpinguis. 
Pecten hastatus? ‘“ — fossata 
‘*  equisulcatus. . Omphalius aureotinctus. 
‘“ 3 sp. indet. Chlorostoma Pfeiferi. 
Tapes staminea. ss gallina. 
Scalaria sp. indet. Haliotis splendens (fragment. ) 
Neverita Reclusiana. Tellina bodegensis. 
Norrista norrisit. Pomaulax undosus. 
Pandora (mold only). Macron lividus. 
Fusus ambustus.? ; Ocinebra poulsonit. 
Acmea mitra. Calliostoma gemmulatum. 
‘ InNSeSSQ. Tivela crassatelloides. 
Anomia lampe. Drillia penicillata. 
Ostrea lividus. Myurella simplex. 
There were about a dozen other species, not identified as yet, 
among them a curious form resembling an oyster valve, very 
thick, but too imperfect for me to determine its character. 
A whale barnacle, a fine shark’s tooth, numerous bones of 
some large animal, caseings resembiing those surrounding the 
shells of Lithoglyphus, calcareous tubes of Serpulorbis squami- 
gerus, and numerous specimens. of Echinarachnius excentricus 
were also obtained in this stratum. The locality is worthy of 
much more careful study than I have yet given it, but the above 
will prove sufficient to indicate its character. Three imperfectly 
defined strata can be here detected:—The older turned to sand- 
stone, containing molds of various bivalves, and the imperfect 
valves above referred to as. slightly resembling the oyster; the 
second containing the Opalias, Janiras and Pectens and a species 
of Terebratula (?); the third, more recent in character, contain- 
ing the most of the other species. 


ie ekg he RR ee 
we ‘ “0 ape ae — 
