Downiei 



Index to the Nautilus 



Dubiosa 



downiei, Unio 5: 88. 18: 136 



draconis. Lunatia 17: 132, 18: IM, 21: 



44. 21: 66 

 draconis. Polynices 28: 27 

 draparnaldi. EuhyaliniaT: 14 

 draparnaldi. HyaliiiiaT: 14 

 draparnaldi. X'i'trea 11: 129. 15: .^9, 16: 



95, 19: .='8. 25: 63 

 Draparnaudia. 10: 110. 12: 95 



diminiita 19: 42 



singiilaris 11 : 27 



sinistrorsa 11 : 27 



walkeri 19: 43 

 draytoni, Cioniobasis 13: 66 

 Dreissena polymorpha 10: 126 

 Dreissensia conglobata 25: 95 



leucophaeata 4: 6. 12: 84 



polymorpha 9: 38 

 drepanensis. Ciibhuia 12: 55 

 Drepanotrema, 19: 105, 19: 107 

 Drillia alhinodata 10: 122 



albocincta 10: 122 



cancellata 7: 101. 13: 28. 18: 19 



empyrosia 12: 127. 13: 28, 18: 19, 

 22: 135 



fucata 16: 49 



fuscescens 19 : i 7 



harfordiana 19 : 1 7 



hemphilli 7: 133, 13: 28, 13: 102, 

 22: 135, 28: 81 



incisa 7: 101 



inermis 13: 28, 21: 40, 21: 58 



leucocyma 13 : 54 



maciilata 19: 108 



nierriami 24: 143 



mocsta 2 : 68. 12 : 89. 21 : 58. 27 : 28 



oweni 8 : 88 



pedroana 13: 28.24: 143 



penicillata 13: 24, 19: 51, 21: 58. 

 22: 135.27: 29 



piidica 13: 28 



quiscpialis 13 : 28 



rosacea 18:21 



texanopsis 16: 97 



thea 13: 54 



torosa 7: 72, 21: 40 



ullreyana 17: 12 



iiniinaciilata 12: 127 

 Droinus. 15: 53 



capcratiis 34: 88 



dronuis 34: 88 

 dromus, Unio 11: 20, 18: 56, 24: 135 

 drouctiana. Brondelia 27: 115 

 droiietiana. Helix 5:51 

 droiietiana, Leptaxis 5:51 

 Drupa andrewsi 27: 80 



biconica 27 : 80 



iJriipa foliacea 27: 80, 31: 100 



grossularia 27 : 79-80 



iodostoma 27: 80 



iostomus 27: 80 



moriim 27 : 79 



morns 31 : 1 02 



ricinns 27 : 80 



rubusidaeus 27: 79-80 



spinostun 27 : 80 



tribnhis 27: 79-80 



tuberciilata 31: 102 



uva 31: 102 



walkerae 31: 99. 33: 71 

 dryas, Xylotrya 23: 131 

 Drvmaeus, 9:1 14 15, 11: 106 



albida 11: 106 



alternans 34 : 38 



altoperiivianiis 9: 115 



aurisleporis 11 : 88 



bifasciatus 11 : 88 



castus 34 : 50 



debilis 29 : 82-3 



dominicns 13: 45, 19: 39, 20: 9, 

 20: 34. 21: 101, 29: 143 



dormani 9: 115, 11: 106, 20: 24 



discrepans 21 : 72 



floridanus 11: 106 



fordi 23 : 1 98 



hemphilli 11: 106 



hygrohylaeus 9: 115 



immaculatus 27: 98 



insulae-cygni 27: 98 



jonasi 34: 38 



marielinus9: 115. 11: 106 



martensiamis 18: 22 



mnltilineattis 9: 115, 11: 107, 17: 

 48. 19: 39. 20: 24, 21: 72, 21: 

 100-1, 26: 18. 26: 21 



navicula 9: 115 



nubilns 18: 22 



poeciliis 26 : 72 



pseudosuccineus 9 : 115 



semiclausiis 9:115 



serperastrus 9: 115 



serperastrum 11: 106 



sulphnreiis 27: 98. 34: 43, 34: 48, 

 34: 51 



virgulatns 9 : 115 



vittatns 9: 115 



xanthostoma 9 : 115 

 dschulfensis. Helix 2: 7 

 dubia. Aurinia 20: 130, 27: 120 

 dubia. Cyclas 15: 132 

 dubia. Mnricidea 26: 143 

 dubia. Partulina 27: 39. 34: 110-11 

 dubia, Volula 2: 10. 27: 120 

 dubiosa, Bulla 11 : 82 



194 



