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INDEX 



Pisidium sibiricum (144) 



steenbuchii (143) 



ultramontanum (144) 



variabile (142) 



ventricosum (143) 



virginicum (141) 

 Planaria (83) 

 Planella (120) 

 Planogyra 51 



asteriscus 57, 122 

 Planorbarius (81) 

 Planorbe brun 80 

 Planorbella 81, 85 



campanulatus 90 

 Planorbina 8z, 83, 84 



glabrata 86 

 Planorbis 63, 80, 81, 82, 83, 84, 102, 

 (104), 105 



alabamensis 92 



albus 83, 86, (93), 94 



ammon 88 



andecolus 81 



arcticus 96 



armatus 97 



armiger 97, (98), 99 



armigerus 97, (98) 



bellus (90) 



bicarinatus 81, 84, 8j 



billingsi (95) 



binneji 87, 88, 89 



boissyi 82 



borealis (93), 94 



brongniartiana 91 



buchanensis 92 



calculus 81 



callioglyptus (92), 93 



campanulatus 81, 85, go 



carinatus 82 



centervillensis (92), 93 



complanatus 82, 85, 90 



concavus (95) 



contortus 83, 86 



corneus 80, 81, 83, 84 



cornu-arietis 84 



corpulentus 87 



costatus (96) 



crista 96 



cristatus (96) 



declivis 98 



Planorbis deflectus 94. 

 dilatatus 92 

 disjectus 89 

 draparnaldi 94 

 draparnaudi 94 

 elevatus (95) 

 engonatus (87) 

 exacuous 91, 92, 93 

 exacutus (91) 

 fontanus 82, 86 

 glabratus 86 

 guadeloupensis 81 

 hirsutus pj, 94 

 hispidus 83 

 hornii 89, 90 

 imbricatus (96) 

 lacustris 97 

 lens 91 



lentus (86), (88) 

 libanicus 82, 83 

 limophilus 95 

 Hneatus 97 

 loryi 81 



macrostomus (88), 89, 90 

 major 87 

 marginatus 82 

 megas gi 



multivolvis 82, 85 

 nathorsti 96 

 nautileus (96) 

 nitidus 97 

 obliquus 94 

 occidentalis 89 

 olivaceus 84 

 opercularis 82, 86, 92 

 oregonensis 89, (92), 93 

 parallelus (52) 

 parvus 83, 86, 9J, 96 

 planulatus 92, 93 

 rotundatus 82, 86 

 rudentis 90, 91 

 subcrenatus (88), 89, 90 

 traskii 88 



trivolvis 81, 85, 87, 88, 89, 90 

 tumens 88, 89 

 turritus (106) 

 umbilicatellus 96 

 umbilicatus 82, 85, (96) 

 vermicularis 95 



