INDEX 



249 



Tubularia larynx 187 

 Turbo (104), (115) 



muscorum (28) 



nautileus (96) 



stagnalis (106) 



Unio II, 133 

 alatus (126) 

 asperrimus (134) 

 borealis (126) 

 complanatus (132), /jj 

 costatus (133) 

 crassus (126), (133) 

 dahuricus (132) 

 ellipsiformis (126) 

 elongatus (132) 

 falcatus (132) 

 flavus (134) 

 gracilis (127) 

 heros (133) 

 hippopaeus (133) 

 katherinse (131) 

 lachrymosus (134) 

 ligamentinus (126) 

 luteolus (125) 

 mongolicus (132) 

 multiplicatus (133) 

 pictorum 13 

 plicatus (133) 

 quadrulus (134) 

 radiatus (126) 

 rectus (126) 

 rubiginosus (134) 

 sinuatus (132) 

 spatulatus (126) 

 trigonus (134) 

 undulatus (133) 

 ventricosus (125) 



Vallonia 22 



albula 2j 



asiatica 23 



costata 23 



gracilicosta 23 



minuta (22) 



pulchella 22, 23 



rosalia (23) 

 Valvata 85, (120) 



carinata (121) 



Valvata confusa (121) 



cristata 120, 122, 124 



helicoidea 123 



humeralis 121 



jelskii 120, 121 



lewis i 123 



mergella 124 



minuta 120 



nylanderi 122 



piscinalis 120, 121, 124 



sibirica 124 



simplex (121), 122, 123 



sincera 122, (123) 



striata (123) 



tricarinata 120, 121, 122 



unicarinata (121) 



virens 124 

 Valvatidae 120 

 Valvearius (i2o) 

 Velifera 36 

 Velletia (108), 109 

 Velutinopsis (61), 62, 65 

 Vertigo 3, 2g 



approximans (31) 



arctica 32 



arthuri (31) 



binneyana 31 



boUesiana (30) 



borealis 30 



callosa (33) 



castanea (29) 



Columbiana 30 



elatior (31) 



gouldii 30 



hoppii 29, 



krauseana 32 



lagganensis (31) 



milium 32, 33 



modesta 2g 



ovata 2)^i 32 



parietalis (29) 



pentodon (28) 



pygmaeajj 



simplex (54) 



ventricosa 31 

 Vertilla milium (32), 33 

 Vesica (59) 

 Vitrea 38, (40) 



binneyana 3q 



