170 



Unio spatulatus (126) 

 trigonus (134) 

 undulatus (133) 

 ventricosus (125) 



Vallonia 22 

 albula ^j 

 asiatica zj 

 costata 23 

 gracilicosta 23 

 minuta {22) 



pulchella 22., 23 



rosalia (23) 

 Valvata S5, (120) 



carinata (121) 



confusa (121) 



cristata 120, 122, 124 



helicoldea 123 



humeralis 121 



jelskii 120, 121 



lewisi 12^ 



mergella 124 



minuta 120 



nyUndeh 122 



piscinalis 120, 121, 124 



sibirica 124 



simplex (121), 122, 123 



sincera 122, (123) 



striata (123) 



tricarinata 120, 121, 122 



unicarinata (l2l) 



virens 124 

 Valvatida; 120 

 Valveariiis (120) 

 Velifera 36 

 Velletia (108), 109 

 Velutinopsis (61), 62, 65 

 Vertigo 3, zg 



approximans (31) 



arctica 32 



arthuri (31) 



binnevana j'/ 



bollesiana (30) 



borealis 30 



callosa (33) 



castanea (29) 



columbiana^O 



elatior (31) 



goiildii JO 



Vertigo hoppii 2g 

 krauseana 32 

 lagganensis (31) 

 milium J2, 33 

 modesta 2g 

 ovata 31, J2 

 paiietalis (29) 

 pentodon (2S) 

 pjgmaajj 

 simplex (54) 

 ventricosa j/ 

 Vertilla milium {32), 33 

 Vesica (59) 

 Vitrea 38, (40) 

 binneyana jp 

 fulva (41) 

 indentata Jp 

 nitidula jp 

 radiatula j5 

 Vitrinajj, (36), 37 

 alaskana 37, 38 

 americana ^37) 

 angelics j(5, 37 

 berjUina 37 

 bicolor 36 

 conoidea 36 

 diaphana 36 

 exilisj/, {38) 

 lederi 36 

 limpida_J7 

 major 36 

 pauluccije 36 

 pellucida 36, (37) 

 pfeitteri (37) 

 Vitrinozonites 36 

 Vitrinus (35) 

 Vivipara 11 

 Viviparids 124 

 Vortex 81 

 Vorticifex 63 



Zagrabica (61), 65 



brusiniana 65 



naticoides 61 

 Zonites (39) 



conspectus (53) 



fulvus (40) 



lansingi 44 



nitidulus (39) 



