NORTH AMERICAN CONCHOLOGY. 



4n 



Page. 





Page. 





262 



Strombus gigas. 



267 



Teredo navalis. 



266 



Tellina fragilis. 



272 



Trochus magus. 



266 



radiata. 



273 



Turbo corticaria. 



266 



similis. (Amer.) 



275 



Venus mercenaria 



266 



dubia. {Amer.) 



278 



Voluta pallida. 



(xv. r.) 



Gould.— Mollnsca and Shells of the TJnited States Exploring 

 Expedition (Com, Wilkes) : by A. A. Gould, M. D. Boston, 

 1852. 



[The following are the American species. — W. G. B.] 



Page. 



Fig. 



2 



2, 2% 2" 



3 



1-1= 



28 



29-29'' 



36 



37 



36 



41-41'' 



37 



42-42= ■ 



66 



38 



66 



36 



67 



35-35= 



es 



39-39= 



69 



74-74" 



70 



40-40^ 



112 



131-131= 



113 



132-132= 



113 



130-130" 



114 





120 



138, 138=^ 



121 



141, 141^ 



122 





122 





141 



164, 104'' 



142 



103, 103» 



143 



165 



144 



166,166" 



149 



175-175= 



185 



207-207" 



194 



230-230"' 



197 



237, 237» 





27 



Name. 

 Arion foliolatus Gould. 

 Limaz Columbianus Gould. 

 Succinea rusticana Gould. 

 Helix Vancouverensia Lea. 



strigosa Gould. 



sportella Gould. 



Nixttalliana Lea. 



To'wrnsendiana Lea. 



Helix pedt-stris Gould (p. 65). 

 ruida Gould (p. 05). 



labiosa Gould. 



loricata Gould. 



devia Gould. 



germana Gould. 

 Planorbis vermicularla Gould. 



opercularls Gould. 



corpulentus Suij. 



trivolvis Satj. 

 Physa virglnea Gould. 

 Limnea lepida Gould. 



apicina Lm. 



umbrosa Say. 



Melania silicula Gould. 



bulbosa Gould. 



plicifera Lea. 

 Cerithium (Potamia) sacratum 



filoBum (Jnutd. [Gould. 



Trochus ligatus Gould. 

 Lacuna carinata Gould. 

 Littorina patula Gould. 



Locality. 

 Puget Sound. 

 Puget Sound, &c. 

 Oregon. 

 Oregon. 



Puget Sound, &c. 

 Puget Sound, &c. 

 Puget Sound, &c. 

 Willamet creek. 



Oregon, &c. 

 Sacramento river. 

 Puget Sound. 

 Oregon. 



Interior of Oregon. 

 Sacramento river. 

 Columbia river. 



Sacramento river. 

 Lake Vancouver. 

 Oregon. 



Columbia and Sacra- 

 mento rivers. 

 Kisqually. 

 Columbia river. 

 Lake George, Oreg. 

 Sacramento river. 

 Puget Sound. 

 Puget Sound. 

 Puget Sound. 

 San Francisco. 



