INDEX 



Planogyra asteriscus 57, 122 

 Planorbarius (8l) 

 Planorbe brun 80 

 Planorbella <?/, 85 



campanulatus 90 

 Planorbina 81, 83, 84 



glabrata 86 



Planorbis 63, 80, 8l, 82, 83, 84, IO2, 

 (104), 105 



alabamensis 92 



albus 83, 86, (93), 94 



ammon 88 



andecolus 8l 



arcticus 96 



armatus 97 



anniger 97, (98), 99 



armigerus 97, (98) 



bellus (90) 



bicarinatus 81, 84, 87 



billingsi (95) 



binneyi 87, 88, 89 



boissji 82 



borealis (93), 94 



brongniartiana 91 



buchanensis 92 



calculus Si 



callioglyptus (92), 93 



campanulatus Si, 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 



deflectus 94. 



dilatatus 92 



disjectus 89 



draparnaldi 94 



draparnaudi 94 



elevatus (95) 



engonatus (87) 



exacuous o/, 92, 93 



exacutus (91) 



Planorbis 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 



lineatus 97 



loryi 81 



macrostomus (88), 89, 90 



major 87 



marginatus 82 



megas 91 



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, oj, 96 



planulatus 92. 93 



rotundatus 82, 86 



rudentis go, 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 05 



virens 94. 



vortex 82, 85 



vulgaris 82 



wheatleji 97, 98 



yzabalensis 82, 86 

 Planorbula (97), 98 



armigera 98 



christyi 99 

 Plesiophysa 101 



