346 



PROCEEDINGS OF THE CALIFORNIA 



33. Mopalia muscosa, Gld. 



34. Hindsii, Gray. 



35. lignosa, Gld. 



36. Acanthopleura scabra, Rve. 



37. Nacella vernalis, Dall (mss.) 



38. instabilis, Gld. 



39. Acmaea patina, Esch. 



40. pelta, P^sch. 



41. Asmi, Midd. 



42. persona, Esch. 



43. spectrum, Nutt. 



44. Lottia gigantea, Gray. 



45. Scurria ruitra, Esch. 



46. Glyphis aspera, Esch. 



47. Clypidella callomarginata, Cpr. 



48. bimaculata, Dall (mss.) 



49. Haliotis Cracherodii, Leach. 



50. rufescens, Swains. 



51. Chlorostoma funebrale, A. Ad. 



52. brunneum, Phil. 



53. Pfeifferi, Phil. 



54. Calliostoma canaliculatum, Mart. 



55. costatum, Mart. 



56. Margarita pupilla, Gould. 



57. Crepidula adunca, Sby. 



58. navicelloides, Nutt. 



59. var. numraaria, Gld. 



60.  var. explauata, Gld. 



61. Hipponyx cranioides, Cpr. 



62. 

 63. 

 64. 

 65. 

 66. 

 67. 

 68. 

 69. 

 70. 

 71. 

 72. 

 73. 

 74. 

 75. 

 76. 



79. 

 80. 



81. 

 82. 



83. 



84. 

 85. 

 86. 



87. 



Litorina planaxis, Nutt. 



scutulata, Gld. 



Lacuua porrecta, Cpr. 



unit'asciata, Cpr. 



Isapis obtusa, Cpr. 

 Erato vitellina, Hinds. 

 Drillia torosa, Cpr. 

 Scalaria Indianorum, Cpr. 



subcoronata, Cpr. 



Opalia borealis, Gld. 

 Velutina prolongata, Cpr. 

 Olivella biplicata, Sby. 



intorta, Cpr. 



Nassa fossata, Gld. 



perpinguis, Hds. ? 



mendica, Gld. 



Amycla gausapata, Gld. 

 Amphissa corrugata, Rve. 

 Purpura crispata, Chem. 



var. septentrionalis, Rve. 



Purpura saxicola, var. ostrina, 



Gld. 

 Monoceros engonatum, Conr. 

 Ociuebra lurida, Midd. 



var aspera, Baird. 



var. munda, Cpr. 



interfossa, Cpr. 



88. Cerostoma foliatum. 



89. Octopus 



(n. s. ?) 



Navea Newcomhii, alive in Haliotis Cracherodii. Nos. 4, 5, 6, 25, and 26 

 alive in soft shale between tide marks. Doris albopunctata, two specimens alive 

 on rocks near low water mark. Of the Chitons, Nos. 31 and 36, particularly 

 abundant ; of the others named several specimens obtained, also one or two spe- 

 cies undetermined. 41, common, alive, on Chlorostoma funebrale. 45 and 46, 

 several living specimens between tide marks. 47 and 48, I think, are distinct 

 species ; suggest Lucapina, but foramen nearly twice as large as in shells of 

 the latter of same size, differing also in sculpture and weight of shell. 49, ani- 

 mal lives for a long time, aud affixes itself tenaciously to the rocks after the 

 shell is removed. 63 and 65, together living on rocks near high-water mark, 

 and on eel grass in pools left by the tide. 89, perhaps young of Mr. Gabb's spe- 

 cies O. punctatus ; two living specimens, as yet undetermined, probably a new 

 species. 



Professor Silliinan read a paper " On Naphtha and Illuminating 



