ADDITIONAL ERRATA TO PART I. 



Page 363. Anthony. The descriptions on page 363 of Part I are to 

 be attributed to J. G. Anthony, and not to Dr. Gould. 



Page 431, line 2, for P. P. Carpenter read Rev. C. C. Carpenter. 

 " 477, line 14, for Siphonaria Lecanium read Siphonaria aequi- 

 lirata. 



ERRATA TO PART II. 



Page 10, line 3, /or apiculatus read articulatus. 

 " 11, after line 15, read "p. 59. Anodon angulatus. Rio Sacra- 

 mento, Cal." 



Page 86, line 9 from bottom. Lampas psittacea should be in the synonymy 

 of Anomia psittacea. 



Page 97, line l,for Ian. read Jan. 

 " 111, line 7 from bottom, add p. 66. Helix fulvoidea Morch. Car- 

 men Isl. 



Page 194, line 9 from bottom, /or triangulata read biangulata, 

 " 195, line 6, /or San Francisco read Cape San Francisco. 



( 306 ) 



