ACADEMY OF NATURAL SCIENCES. 



345 



Dr. Newcomb also visited Santa 

 species : 



1. Waldheimia Grayi, Davidson. 



2. Saxicava pholadis, Linn. 



3. Seraele decisa, Conr. 



4. Acmoea scabra, Nutt. 



5. Lottia gigantea, Gray. 



6. Rowellia radiata, Cooper. 



7. Haliotis Cracherodii, Leach. 

 8. corrugata, Gray. 



9. Pomaulax undosus, Wood. 



10. Trochiscus Norrisii, Sby. 



11. Chlorostoma gallina, Fbs. 



12. funebrale, A. Ad. 



Cruz Island, and collected the following 



13. Chlorostoma aureotinctum, Fbs. 



14. Trivia Californica, Gray. 



15. Conns Californicus, Hds. 



16. Amycla tuberosa, Carp. 



17. Monoceros engonatum, Conr. 



18. Cerastoma Nuttalli, Conr. 



19. Muricidea incisus, Brod. 



20. Trophon triangulatus, Carp. 



21. Fnsus ambustus, Gould. 



22. Argonauta Argo, Linn. 



23. Helix Ayresiana, Newc. 



List of Shells collected at Purissima and Lobitas, California, 



October, 1866. 



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



" Purissima" and " Lobitas" are the names of two creeks situated a few miles 

 south of Spanish Town, in San Mateo County. Near the points where these 

 streams empty into the ocean are small beaches and groups of flat rocks left 

 bare at low tide, limited, however, in extent, as the shore in the neighborhood; 

 is for the most part exceedingly bold and precipitous, the ocean at ordinary 

 high water beating against the base of the cliffs. 



Dr. Newcomb and myself visited the localities at the period above men- 

 tioned, and collected the following species from among the drift or upon the- 

 rocks : 



1. Waldheimia Grayi, Davidson. 



2. Navea Newcombii, Tryon. 



3. Zirphasa crispala, Linn. 



4. Pholadidea penita, Conr. 



5. ovoidea, Gould. 



6. Netastomella Darwinii, Sby. 



7. Parapholas Californica, Conr, 



8. Saxicava pholadis, Linn. 



9. Platyodon caucellatum, Conr. 



10. Schizoth&Tus Nuttalli, Conr. 



11. Lyonsia Californica, Conr. 



12. Mytilimeria Nuttalli, Conr. 



13. Macoma inconspicua, Br. & Sby. 



14. Standella falcata, Gld. 



15. Tapes staminea, Conr. 



16. ruderata, Desh. 



TROC. CAL.' ACAD. VOL. III. 



25 



17. Tapes diversa, Sby. 



18. Rupellaria lamellifera, Conr.. 



19. Petricola carditoides, Conr. 



20. Lazaria subquadrata, Cpr. 



21. Kellia Laperousii, Desh. 



22. Mytilus Californianus, Conr... 



23. edulis, Linn. 



24. Modiola fornicata, Gld.. 



25. Adula falcata, Gld. 



26. stylina, Cpr. 



27. Ilinnites giganteus, Gray. 



28. Placunanomia macroschisma,Desh. 



29. Doris albopunctata, Cooper. 



30. Cryptochiton Stelleri, Midd. 



31. Katherina tunicata, Wood. 



32. Tonicia lineata, Wood. 



Sept. 1867. 



