CONCHOLOGICAL MEMORANDA. 

 NO. III. 



[From Proceedings Cal. Acad. Nat. Sciences. December 'id, 1867.] 



List of Shells collected at Bodega Bay, California, June, 1867. 



BY ROBT. E. C. STEARNS, CURATOR OF CONCHOLOGY, CAL. ACAD. NAT. SCIENCES. 



In pursuance of the idea mentioned in my paper on the shells of Baulines Bay, 

 of examining the bays and coast to the north of San Francisco, I made a brief trip 

 to Bodega Bay in company with my friend Dr. Newcomb, on the thirteenth of 

 June, 186Y. Most of the species enumerated were collected within a very limited 

 area, between tide marks, at the extreme point of Bodega Head, as the arm of 

 land is called, which extending in a southerly direction from the general Ihie of the 

 coast, incloses what is known as Bodega Bay. The bay itself is, for the greater part, 

 left bare at low tide, and the flats then exposed, composed of sandy mud, contain 

 abundance of the common bivalves of the coast, principally Maccmm^ (two species) 

 and Tapes^ in all its varieues : Saxidomus gracilis may also be found here in con- 

 siderable quantities, and is at certain seasons dug l)y the Indians, together with the 

 other so called " clams." At the spot where the principal portion of this collection 

 was made, the outcropping rock is a coarse granite, upon which Litorina planaxis 

 is found in great numbers. The limited time at my disposal, at the season when the 

 trip was made, was only sufficient to admit of a brief, and therefore unsatisfactory 

 reconnoissance ; nevertheless, at least seventeen species were detected which have not 

 heretofore been found (or reported) so far to the north. Many of these species I 

 failed to find at Baulines, and some of them have not lieen reported north of 

 the Bay of Monterey. At Baulines, the rocks are principally shales, and contain 

 many species of pholads, which as will be seen by a glance at this list, if not 

 entirely absent, must be rare at Bodega ; the various " nestlers " which are found 

 associated with the borers are also wanting ; Haliotis rufescens is abundant upon 

 the rocky islets off the coast, but not even a fragment of H. Cracherodii was met 

 with. 



1. Cryptomya Californica, Conr. 



2. Schizothaerus Nuttalli, Conr. 



3. Entodesma saxicola, Baird. 



4. Mytilimeria Nuttalli, Conr. 



5. Machasra patula, Dixon. 



6. Macoma secta, Conr.* 



7. nasuta, Conr. 



8. Tellina Bodegensis, Hds. 



9. Tapes staminea, Conr.:j: 



10. var. Petitii, Desh.:}; 



11. var. ruderata, Desh.| 



12. var. diversa, Sby.;}: 



13. Saxidohius gracilis, Gould.* 



14. Chama exogyra, Conr.* 



15. Cardium corbis, Mart. 



16. Lazaria sub-quadrata, Cpr. 



17. Kellia Laperousii, Desh. 



18. Lasea rubra, Mont. 



