i66 



Pisidium sibiricum (144) 



steenbuchii (143) 



ultramontanum (144) 



variabile (142) 



ventricosum (143) 



virginicum (141) 

 Planaria {83) 

 Planella (120) 

 Planogjra 51 



asteriscusj/, 122 

 Planorbarius (81) 

 Planorbe biun 80 

 Planorbella 81, 85 



campanulatus 90 

 Planorbina 81, 83, 84 



glabrata 86 

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

 (104). 105 



alabamensis 92 



albus83, 86, (93). 94 



ammon 88 



andecolus 81 



arcticus g6 



armatus 97 



armiger 97, (98), 99 



armigerus 97, (98) 



bellus (90) 



bicarinatus 81, 84, Sj 



billingsi (95) 



binneji $7, 88, 89 



boissji 82 



borealis (93), 94 



brongniartiana 91 



buchanensis 92 



calculus 81 



calliogl^-ptus (92), 93 



campanulatus 81, 85, go 



carinatus 82 



centervillensis (92), 93 



complanatus 82, 85, 90 



concavus (95) 



contortus 83, 86 



corneus 80, 8lj 83, 84 



cornu-arietis 84 



corpulentus 87 



costatus (96) 



crista <)6 



cristatus (96) 



declivis 98 



Planorbis deflectus g.f 

 dilatatus 92 

 disjectus 89 

 draparnaldi 94 

 draparnaudi 94 

 elevatus (95) 

 engonatus (87) 

 exacuouB 9/, 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 

 Hmophilus 95 

 Hneatus 97 

 lorji 81 



macrostomus (88), 8g, 90 

 major 87 

 marginatus 82 

 megas gi 



multivolvis 82, 85 

 nathorsti g6 

 nautileus (96) 

 nitidus 97 

 obliquus 94 

 occidentalis 89 

 olivaceus 84 

 opercularis 82, 86, gz 

 oregoncnsis 89, (92), 93 

 parallelus (52) 

 parvus S3, 86, gs, 96 

 planulatus g2, 93 

 rotundatus 82, 86 

 Tudentis go, 91 

 subcrenatus (88), 89, 90 

 traskii 88 



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

 tuinens 88, 89 

 turritus (106) 

 umbilicatellus g6 

 umbillcatiis 82, 85, (96) 

 vermicularis 95 



