NORTH AMERICAN CONCHOLOGY. 



191 



[Proc. Zool. Soc. London.] 



153 



190 



2C3 

 203 



271 

 271 

 271 

 271 

 272 

 272 

 272 

 273 

 273 

 274 



274 

 274 

 274 



Arthur Adams. 

 Fhos gaudens Uiiuh. 



Tehuantepec, W. C. of 

 Mexico. 



Lea. 



Vera Cruz, Mex. 



1 



9 

 8 

 7 



11 



10 



2 



6 



12 



10 



Isaac Lea and H. C. 

 Melania apis Lea. 



Arthcr Adams. 



Modulus lenticularis Ch. (Trochus). Mexico. 

 Trochus modulus Linn, 

 carchedonicus Lam. California. 



Monodonia Sayii Nuttall. 



Prof. Edward Forbes. 

 Trochita spirata Forbes. Massaniello, G. of Cal. 



Trochus castaneus Nutt. MS, Upper California. 

 {Muiiodontd) gallina Forbes. Mazatlan? 

 aureo-tinctus Forbes. Mazatlan ? 

 (Margarita) purpuratus Forbes. W. C. of Am. ? 

 Hillii Forbes. N. W. C. of America ? 

 Natica Pritchardi Forbes. Mazatlan. 



Planaxis nigritella Forbes. Str. of Juan de Fuca. 

 Purpura analoga Forbes. California ? 



var of P. decemcostata or Freyrinetii. 

 Fusus Kelletii Forbes. California. 



Oregonensis. California. 



salebrosus. Mazatlan. 



J. S. Gaskoin, 



1851. 



Page. Xiino. 



12 Columbella Californiana Cask. 



A. Adams. 



^l Subemarginula denticulata A. Ad. 



If^l Nassa (B)irrinu7ii) vibex Sai/. 

 1"!) perpinguis Hinds. 



112 trivittatum (Hurr.) Sai/. 



1"'^ Infundibulum Californicum A. Ad. 



1J37 Phorcus Californicus .1. Ad. 



Locality. 

 San Diego, Cal. 



Mexico. 



W.Indies, Philippines. 



Magdalena Bay. 



New York. 



California. 



California. 



