yo The West American Scientist. 



SOME NOTES ON TERTIARY EOSSfLS OF CAL- 

 IFORNIA. 



PACIFIC REACH. 



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 which the lollow- 

 ing is a partial list: — 



Oiivella hiplicata. Lucina Nuttaliii. 



boetica. Cerithidea sacrata. 



" sp. indet. Amphissa versicolor. 



Conns CalitornicHs. Arnycia carinata. 



Surcula Carpenteriana. Dentalium hexagonuni. 



Monoceros engonatum. Cardita sithquadrata. 



" var. spiratum. Littorina scutulata. 



Ranella Californica. Pteronotus festivus. 



Opalia anomala, Stearns. Crepidula adunca. 



" varicostata, " " unguiformis. 



Siphonalia Kellettii. Nassa cooperi. 

 Janira bella. " perpinguis. 



Pecten hastatus? " fossata 



" aequisulcatus. Omphalius aureotinctiis. 



" 3 sp. indet. Chlorostoma Pfeiferi. 

 Tapes staniinea. " gallina. 



Scalaria sp. indet. Haliotis splendcns (^fraji^inetit) 



Neverita Reclusiana. Tellina bodegensis. 



Norrisia norrisii. Poniaulax undosiis. 



Pandora (mold only). Macron lividns. 



FiisHS ambtistus.l Ocinebra poulsonii. 



AcvKTa niitra. Calliostoma gemmulatum., 



" insessa. Tivela crassatelloides. 



Anomia lampe. Drillia peniciUata. 



Ostrea lividns. 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 resembling 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. 



