IV 



Cantagallanus 177, conneetens 

 173, Dennisoni 184 ; distortus 

 177, integer 183, irroratns 183, 

 maximus 173. 174, oblongus 

 176, pardalis 184, Popelairianus 

 172. 173. 174, riparius 196, 

 rosaceus 176, Thammianus 173, 

 Valenciennesi 174. 



Bythinella attenuata 150, aus- 

 triaca 141, Binneyi 150, Nickli- 

 niana 150. 151, obtusa 150, 

 Schmidtii 122. 141. 149. 150. 

 151, tenuipes 150, viridis 122. 

 141, Welebitanfl 121. 



Bytbinia archaea 100, marginata 

 101, tentaculata, v. bottnicä 71. 



Calyeulina lacustris 111, v. sep- 

 tentrionalis 108. 



Campeloma 131. 



Carinifex 138. 



Cardium elongatutulum 130. 



Cephalopoda 105. 



Chaetoderma 104. 



Chiastoneura 104. 



Cliitonidae 104. 



Choanompbalus 110. 133. 137, 

 Maaki 133. 138. 139, Schrenki 

 133. 134, valvatoides 133. 



Chromodoris albescens 5, calcarae 



4, coelestis 4, coerulea 4, ele- 

 gant 4. 5. 6. 34. 35, elegantula 



5, gracilis 5, luteo-rosea 5, Nar- 

 dii 4, pallens 5, Pusinii 5, Pul- 

 cherrima 4, Scacclii 5, tricolor 

 4, Valenciennesii 4, rillnjranca 

 4. 23. 36. 



Clausilia 198, aemula 77, biplicata 

 143, caria 143, conneetens 78, 

 cruciata 140, dubia v. älpicola 

 86, joinvillensis 100, laminata 

 var. plicifera 77, var. propin- 

 gua 77, var. pyrostoma 77, 

 nigricans 153, var. exigua 78, 



var. erronea 78, Nilsoni 77, 

 ommae 78, oreas 77, personata 

 78, plicata var. austera 77, pli- 

 catula var. alpestris 87, var. 

 curta 87, var. falaciosa 77, 

 pumila var. truncatula 77, sca- 

 niea 77, sejuneta 78. 



Clostericus 130. 



Corona 185, mars 185, regina 185. 



Crassatellina 130, oblonga 130. 



Cyclostoma elegans 100, lute- 

 tianum 100, subelegans 100. 



Cyclostomacea 104. 



Cyclotacea 104. 



Cylindrella 195, aequatoria 195. 



Cymella 170. 



Daudebardia atlantica 98, brevi- 

 pes 97. 98, charopia 98, Gail- 

 lardoti 98, hassiaca 96, Heldii 



97, 98, Laugi 98, Letourueuxi 



98, nivalis 98, novoseelandiea 



99, nubigena 98, platsytoma 98, 

 rufa 97. 98, sardoa 98, Saulcyi 

 99, sicula 99, transsylvanica 98. 



Dentellaria 165, bituberculata 165 

 Bourcieri 166, latidentata 166 

 tridentula 165. 



Diana 127. 128. 



Doris elegans 5. 6, iniueata 4, 

 marmorata 4, Nardii 4, pieta 6, 

 pulcherima 23, Schult/Jana 'ö, 

 tenera 23, villafranca 4. 



Drymaeus 188. 189, Baezensis 

 190, Felix 190, fucatum 189, 

 fusoides 189, murrinus 190, in- 

 aequalis 190, petasites 189. 



Dryptus 179. 182. 183, Corydon 



180, Grevillei 180, Guerini 180, 



irroratus 179, var. elongatula 



179, var. minor 179, lyncicu- 



lus 180. 



Eurytus 180. 183, Aristaeus 182, 

 aureonitens 181, cardinalis 182, 



