ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 213 



Jar 185. San Francisco. 

 Physa virginea, G. 

 Purpura emarginata. 

 Littorina patula, G. 

 Acmcea scabra, G. (ridged and nodulate) 



[= A. spectrum, Nutt.] 

 Trochus (like Puget Sound). 

 Physa (with truncate spire). 

 Physa (elongate), from behind Presidio. 

 Nassa (small, like Puget Sound). 

 Planorbis (flat and rather fine). 

 Succinea (small). 

 Littorina plena, G. 



Oregon, by Drayton. 



Tellina secta, Conr., below mouth of 



Columbia. 

 Anodon feminalis, G., Wallawalla. 

 Anodon Oregonensis, Lea, Wallawalla. 

 Alasmodon falcata, G., Wallawalla. 

 Melania plicifera, Lea, mill-dam above 



Vancouver. 

 Tellina, F. George, stomach of sturgeon. 

 Limncea (small), Lake at Vancouver. 

 Solen sicarius, G. 

 Melania, Chester River. 

 Unio famelicus, G., Wallawalla. 

 Helix labiosa. 



Pecten, dredged at Baker's Bay. 

 Limax Columbianus, G., Nisqually. 

 Natica Lewisii, G., Puget Sound. 

 Modiola flabellata, G., Port Discovery. 

 Pecten Townsendi, Nisqually. 

 Panopcea generosa, Nisqually. 



Oregon Tour. 

 Helix strigosa, G. 



Planorbis vermiculatus, G., Wallawalla. 

 Helix Townsendiana, Lea. 

 Helix devia, G. 



Jar 166. De Fuca to Nisqually. 

 Lymncea (elongated). 

 Physa (decollate). 



Puget Sound. 

 Fusus fidicula, G. 

 Pecten (young). 

 Calyptrcea (bis). 



Fusus (or Columbella, small, smooth). 

 Venus (very small and smooth). 

 Chiton (very small). 

 Modiola (like discors). 

 Trochus virgineus, Wood. 

 Cardita ventricosa, G. 

 Fusus Orpheus, G. 

 Cardium Calif or nianum, Conr. 

 Trichotropis cancellata, Hds. 

 Goniodoris. 

 Bullceoid [species]. 



Crepidula (small, white, on young Pur- 

 pura). 

 Doris (like). 

 Terebratula pulvilla, G. 

 Terebratula (septentrionalis-like) , 

 Natica caurina, G. 

 Oliva (small). 



Brought up on Anchor. 



Chiton (very small and narrow). 



Rimula cucullata, G. 



Lacuna carinata, G. 



Acmcea mitra. 



Littorina scutellata, G. 



Acmcea textilina, G. 



Solen maximus, (mouth of Columbia). 



Helix Vancouverensis, Lea. 



Limnea (much like Paludina), Columbia 



River. 

 Physa (bis). 



Jar, going up to Puget Sound. 

 Limax Columbianus, G. 

 Limax foliolatus, G. 



Dredged at Port Townsend. 

 Chiorcera leonina, G. 



Trochus (bis). 



Acmcea (smooth, with Balanus). 



Jar 1881. Oregon. 

 Planorbis corpulentus, Say, Fort George. 

 Limncea (ventricosa), near Fort George. 

 Helix Vancouverensis, Lea. 

 Helix Townsendiana, Lea. 

 Unio famelicus, Wallawalla. 

 Cyclas egregia, Vancouver. 

 Bulla (small, very thin), Puget Sound. 

 Littorina lepida, Classet. 

 Buccinum. 



Discovery Harbour. 

 Helix, 5 or 6 species. 

 Cardium blandum, G. 

 Lutraria capax, G. 

 Venus ampliata, G. 

 Mytilus trossulus. 

 Chiton (shell not appearing externally). 



Townsend Harbour. 

 Solen sicarius, G. 

 Mytilus trossulus, G. 

 Modiola flabellata, G. 

 Cardium Nuttallii, Conr. 

 Natica Lewisii, G. 

 Bullceoid [species]. 

 Trochus. 

 Columbella. 

 Purpura. 

 Calyptraa. 



