246 



Pleurocera iib 



canaliciilata 1:6 

 Pleurolimnsa (5o), 63, 64 



tenuicostata 60 

 Plumularia 206 



californica (206) 



lagenifera 177, 20b 



palmeri 177, 206 

 Poevia (108) 



gundlachioides 108 

 Polita (39) 



fulva (40) 

 Poljgvra 24 



albolabris 2b 



Columbiana 24, 34 



devia 24 



germana 2^, 26 



labiosa (24) 



megasoma 26 



monodon 2b 



ptychophora 2^ 



santacruzensis 24 



townsendiana 2^ 

 Poly gyrus (83) 

 Polyrhytis (5i), 63, 64 

 Pomatiopsis iig 



lapidaria 119, (120) 

 Pompholyx 63 

 Primella raymondi (139) 

 Pristiloma 44 



arctica 4^ 



idahoense 44 



lansingi 44 



pilsbryi 44 



steai-nsi (44), 45 



stearnsii 44 



taylori 44 

 Prophysaon 4b 



andersoni 4b 



coeruleum 41 



dubium (47) 



fasciatum (47) 



flavum (46) 



foliolatum ^7 



hemphilli (46), 47 



humile 41 



marmoratum (46) 



obscurum (47) 



pacificum (46) 



Prophysaon pallidum (46) 



suffusum (46) 

 Proptera alatus (127) 

 Protancylus 109 

 Pseudohyalina minuscula (43) 



pugetensis (43) 

 Pterosygna 131 

 Pulmobianchia loi 

 Punctum 5j 



asteriscus 53 



clappi 51, jj 



conspectum 10, S3 



minutissimum (53) 



pugetensis (43) 



pygmaeum Jj 



randolphi S3 

 Pupa alticola (54) 



arctica (32) 



armifera (27) 



badia {28) 



bigranata (28) 



blandi (28) 



columella (54) 



contracta (27) 



corpulenta (29) 



costulata (21) 



decora (29) 



edentula (54) 



exigua (116) 



gouldii (30) 



gredleri (54) 



holzingeri (28) 



hoppii (29) 



lundstromi (28) 



milium (32) 



modesta (29) 



pentodon (28) 



pygmiea (33) 



signata (28) 



simplex (54) 



steenbuchi (29) 



superioris (33) 

 Pupidse 27 

 Pupilla sS 



badia (28), (29) 



blandi 2S 



muscorum 28, (29) 

 Pyramidula 49 



alternata 4q 



