Pleurobema 



IXDEX TO THE NAUTILUS 



Pleurodonte 



Pleurobema riddolli 28 : 3 1 



simpsoni 30: 47 



solidiim 30: 20 



taitiana 20: 54 



tombigbeamim 22: 27-8 



tumescens 20: 54 



uttcrbacki 31: 62 

 Pleurobranchopsis auraiitiaca 15: 11 



agassizi 23: 132 



califoriiicus 14: 92 



diKiicti9: 82. 14:93 

 Pleurocera. 2: 81, 2: 94. 30: 110 



alabatnensis 20 : 4 1 



alveare2:94. 8: 82. 20:41 



annuliferuin 18: 38, 20: 41 



anthonyi 18: 39 



bicinctuin 12 : 62 



brumbyi 7: 121. 25: 126 



canaliculatuni 2: 94. 7: 34. 12: 137, 

 17: ^^. 31: 113. 31: 116 



canalitiuin 18: 39 



conicum 3: 89 



ciirrieriamim 12: 62, 25: 126 



ciirtum 3: 89 



dignuin 18: 39 



elevatnm 2: 94. 6: 140, 9: 20. 9: 

 77. 10: 107. 11: 122. 12: 7, 13: 

 35, 13: 30. 20: 23, 20: 41, 31: 

 113, 31: 116 



elongatum 2: 94 



estabrookii 3: 89 



excuratum 18: 39, 20: 41. 25: 126 



fastigiatiim 3: 89 



filum 14: 77 



formanii 18 : 39 



iiicrassatum 18: 39 



incurvum 20: 41 



intensum 5: 52. 6: 139 



labiatum 6: 140 



lativittatum 20: 41 



lewisii 2: 94. 5: 62-3, 9: 20 



lyoni 3: 89 



nioniliferum 2: 94. 18: 39. 20: 41 



inori forme 20: 41 



neglectum 1 : 81, 2: 94, 6: 140, 33 : 

 16 



nobile 18: 39 



olivaceum 20: 41 



opaca 27: 82 



pallidum 5: 52. 6: 140. 20: 23 



parvuin 3 : 89 



ponderosum 18: 39. 20: 41 



striatum 18: 39 



subulare 2: 81. 2: 94, 3: 34, 4: 60. 

 5: 52, 6: 138-40. 7: 34. 9: 37, 

 9: 126. 12: 7, 14: 69-71, 30: 

 122. 31: 113, 31: 116 



Pleurocera sycatnorense 3: 89, 14: 77 



tenebrocinctum 27: 82 



thorn toiiii 18: 39. 20: 41 



trivititatum 14: 58. 20: 41 



troostii 2: 94 



unciale 3: 89. 27: 81. 27: 92-3 



undulatum 2: 94. 14: 77. 20: 41 



verucosa 30 : 110 



vestitum 18: 39 

 Pleuroccridae, 4: 50. 7: 61, 12: 137 

 Pleurodonte acuta 9: 14, 15: 137, 15: 

 140 



acutangula 24: 137-8 



acutissinia 15: 140 



adamsiana 15: ii. 15: 37 



angulata 24 : 136 



anomala9: 14, 16: 1, 16: 3 



atavus 16 : 1 , 16 : 3 



auricoma 27: 139. 29: 136. 32: 104 



bainbridgei 9: 13, 15: 137, 15: 140 



bizonalis 15: 15 



bronni 16: 1. 16: 3 



browneana 16 : 1 , 16 : 4 



bowdeniana 8: 144 



canaliculatum 8: 116 



cara 15: 102. 16: 1, 16: 4 



caracolla 33 : 53 



carmelita 15: 101. 15: 137. 15: 139 



chemnitziana 15: 137, 15: 139 



clappi 15: 34. 15: 37 



cognata 25 : 49 



crispata 15: 14 



debooyi 33 : 33 



emarginata 26 : 69 



fordiana 23: 128 



fuscolabris 15: 140 



gigantea 15: 14. 15: 36. 25: 49 



goldmani 26: 50 



guantanamensis 30: 50 



imperforata 15: 139 



indigna 15: 139 



ingens 15: 137. 15: 139 



invalida 16: 1. 16: 3 



Julia 15: 140 



labyrinthus 26: 60 



lindsleyana 16: 1. 16: 3 



lucerna 15: 140 



marginella 26: 3, 32: 104 



okeneana 16: 1. 16: 3 



orthorhinus 26: 60 



Otis 26: 60 



oxytenes 15: 137. 15: 139 



pallescens 16 : 1 . 16 : 3 



patina 15: 137. 15: 139-40 



peracutissima 9: 14. 15: 33, 15: 

 102, 16: 1. 16: 4 



picturata 16: 1. 16: 4 



336 



I 



