Peracutissima 



Index to the Nautii^us 



Peronii 



peracutissima, Pleiirodonte 8: 4, 9: 14, 



15: 33, 15: 102. 16: 1. 16: 14 

 peraeformis. Unio 10: 81 

 perafllnis. Helix 5: 33 

 peratlmis. Microphysa 5: ,v^ 

 peraflinis, Thysan()[)hora 8: 3 

 perakeiisis. Meiania 12: 14 

 peraltuni, Pisidiuin 14: 5 6. 14: 79. 19: 



31. 20: 44. 26: 95 

 peramabilis, Cardium 3: 14 

 peramabilis. Solariella 4: .16. 7: 102, 



26: 136. 33: 26 

 peramabilis, TeKula 18: 20 

 perampla. Lymiiaea 22: 8 

 peraperta, Aegista 17: 45 

 peraperta. Hiilota 18: 34 

 perattemiata, Magilia 18: 123 

 peraudieri. Aiicyhis 27: 124 

 percallosa. Gastrodonta, 11: 132. 11: 13 

 percarinatus, Planorbis 23: 6 

 perconfusa. Valvata 31: 36 

 perconicus. Microceramiis 26: 106. 26: 



13 

 percorriigata. Unio 18: 12. 23: 141 



percostata. Polygyra 13: 



14: 26. 14: 



percrassa, Licina 26: 100. 32: 89 

 percrassa, Oldroydia 8: 90. 16: 42. 21: 



47, 22: 136 

 percrassa. Ostrea 13: 93 

 percrassum, Buccinum 10: 18 

 percrassiis. Lepidopleunis 8: 90. 16: 



42. 21: 47. 22: 136 

 perdepressa. Helix 5: 53, 5: 69 

 perdepressa. Microphysa 5: 33. 5: 69 

 perdepressa. Thysanophora 8: 3 

 perdepressa, \'alvata 20: 30-1 

 Perdicella ornata 19: 113 

 perdix, Cyclophoriis 12: 1 

 perdix. Dolium 3: 115. 10: 132. 19: 55 

 perdix. Lampsilis 15: 50 

 perdix. Xephroiiaias 27: 82. 27: 91. 



27: 94. 34: 89 

 perdix. Oncaea 32: 99 

 perdix. Partiilina 27 : 7 1 

 perdix. Unio 1: 62 

 pereger, Limnaea 33: 108 

 peregra, Limnaea 3: 40, 10: 105. 16: 96 

 peregrinus. Planorbis 6: 81. 10: 79 

 perelongata. Pseudacliatina 34: 71 

 Pereudesia 34 : 69 

 perexilis. Campolaemiis 6: 96 

 perexilis. Tomigeriis 6: 96 

 perfecta. Oliva 24: 122, 28: 1 15. 29: 70 

 perforata. Macrochlamys 16: 78 

 perfragilis. Macrochlamys 16: 78 

 perfragilis. .Vnchura 12: 95 



pcrgranosa. Trishoplita 22: 42, 22: 43 

 pericalles. Cypraea 18: 96 

 perideris. Hindsia 24: 32 

 perigrapta. Helix 8:51 

 perigrapta, Polvgvra 7: 140. 11: 92, 

 11: 95. 12: 98. 13: 54-5. 13: 70, 13: 

 142 3. 14: 31, 14: 54, 18: 54, 18: 89, 

 20: 34. 25: 124 

 perigrapta, Triodopsis 13: 54 

 Peringiella elongata 12: 54 

 peripherica, Oreohelix 27: 53, 30: 96 

 peripherica, Patiila 2: 64 

 Periploma, 2: 77 



argent aria 9: 104 



carpenteri 10: 48 



cochlodesma 9: 142 



discus 4: 72. 6: 48. 7: 75. 22: 137, 

 29: 131, 31: 104 



fragilis 21: 143 



inequivalvis 19: 79 



leana 2: 77, 9: 35, 32: 91. 33: 114 



planiuscula 7: 1.33. 11: 81, 29: 131, 

 31: 104 



stearnsii 10: 48 



sulcata 17: 122 

 Perirhoe, 21: 124 

 periscelidus, Chrysodomus 5: 47 

 Perissodon, 8:27 

 Peristernia, carolinae 31: 102 



incarnata 31: 102 



thaanumi 31: 101 

 peristomata, Paludestrina 10: 119 

 peristomatus, Potamolithus 10: 87 

 perstriata, Cochliopa 34: 47 

 perita, Ocinebra 21: 41, 22: 38 

 peritus. Murex 21: 41 

 perizonatum. Fulgur 17: 75 

 perkinsiana. Pleurotoma 17: 12 

 perlaevis, Omphalina 14: 56. 24: 91, 



25: 63 

 perlucidus. Bulimulus 17: 103 

 permagna. Trivia 24: 12 

 Perna, 12: 83 



alata 5: 70 



bicolor 7: 116 



chemnitziana 26: 143 



ephippiimi 1: 13. 4: 24. 7: 116 



obliqua 7: 1 16 



recognita. 9: 83 



rigida 7: 116 

 perna, Isognonia 34: 127 

 perna. Ostrea 34: 127 

 pernobilis. Scala 9: 111 

 pernodosa, Quadrula 15: 50 

 pernula. Pinna 11: 25 

 Peronacus. 9 : 114 

 peronii. .Atlanta 5: 68 



322 



