I \ DKX 



133 



N. 



\nntiliilir, 63. 

 Naiitiloccraa, 64. 





biangulatus, 64. 



coronntii>. ii I 



ecccntrii-iia, r,.Y 



I-Mwardsiauii~. i'. ( 



omulinntis, 64. 



pinguis, 64. 



pompilus, 63, 64. 

 larliianus, 64. 



strigalis, 64. 



sulcatus, 64. 

 Neaera, 36. 

 Ni-ilo, 60. 

 Ncreina, 108. 

 NiTid'Hiius, 108. 

 Ni riptcron, 108. 

 Ncrita viridis, 108. 

 Nerilella, 108. 



nebratcensis, 108. 

 Nerilidse, 108. 

 Nrritina, 108. 

 Nfritoma, 108. 

 Nicania, 93. 

 Nodularia, 91. 

 Northoccras, 64. 

 Notosiphitcs, 124, 125. 

 Notocceli, 125. 

 Nncleoapira, 16. 

 Nuculana, 60. 

 Nucula limatula, 60. 

 Nuculanidte, 59. 

 Nuculaninse, 60. 

 Nuculites, 34. 

 Naculocardia, 84. 

 Nacunclla, 84. 



N \ Mil, 84. 

 Nnmmalina, 12. 

 Nuimmilinidie, 12. 



O. 



Obolella, 1. 

 Obolella, 3. 



chromatica, 3, 4. 



nana, 4. 

 O bolus, 1. 

 Obovaria, 91. 

 Oceanus, 64. 

 Odoutociueta, 101. 



OdonrinctiiB, 101 



Omphalia, 64. 



" Ondulees, Let," 83. 



Opcn'tilina, 1 1. 



Opig, 34. 



Orl.is, 106. 



Orthis, 23. 



deformis, 26. 

 Ortbisina, 24. 



alternaU, 26. 



arctistriata, 26. 



crassa, 26. 



raissouriana, 25. 



Shiunardiana, 25. 

 Orthoceras, 63. 

 Orthonota, 36, 85. 

 Orthonymns, 91. 

 Ostracites, 72. 

 Oslrea, 72. 



calceola, 74. 



edulis, 72. 



Engelmanni, 73. 



Marshii, 74. 



matcrcula, 73. 



nobilissima, 73. 

 Ostreidae, 48. 

 Ostreidse, 72. 

 Ostreites, 72. 

 Ostreum, 72. 

 Ovales, 103. 

 Oxytoma, 79. 



P. 



Paclitcs, 124. 

 Pachycardia, 34. 

 Pachjrisma, 34. 

 Pachymya, 84. 

 Paludina, 114. 



sabcarinata, 115. 

 Paludomus, 114. 

 Pandora, 36. 

 Pandorella, 36. 

 Panopaea Cooperi, 43, 44. 



(Mjacitcs) sobelliptica, 



101. 



Papyridea, 97. 

 Paradoxidee, 6. 

 Paradoxidcs, 8. 

 Parallelcpipedum, 88. 

 Pcctcn bellistriatns, 77. 



cottaldinus, 77. 



ex ten u at us, 78. 



gallicnnci, 77. 



Pectcn Jacobins, 77. 



lens, 76, 78. 



maximns, 77. 



rotomagcnsis, 77. 



striato-panctatus, 76. 



virgatus, 76. 

 Pectinites, 22, 100. 

 " Pectinacce*, Let," 83. 

 Pectinibranchiata, 111. 



I'.'imi.l:,. -IS. 



PiTtinidtc (Jurassic), 76. 

 Pectininx, 48. 

 Pectininw (Jurassic), 76. 

 Pectunculitcs, 22. 

 Peloria, 72. 

 Peloriderma, 72. 

 Pentacrinidtc, 66. 

 Pentacrinites, 66. 



asteriscus, 67. 

 Pentacrinus, 66. 

 Pentagonia, 16. 



Pereii, 16. 

 Pentagonites, 66. 

 Pentaraerus, 19, 70. 

 Permian Period, 48. 

 Perna, 28, 87. 

 Pbilopotamis, 114. 

 Pholadomya;a, 103. 

 Pholadomya, 102. 



abrupta, 104. 



anteradiata, 104. 



arcnata, 103. 



cancellata, 103. 



Candida, 103. 



cardissoides, 103. 



cincta, 103. 



decussata, 103. 



humilis, 104. 



multicostata, 103. 



nuda. 103. 



omaliana, 42. 



pectinata, 103. 



pelagica, 103. 



semicostata, 103. 



similis, 103. 



tcnuicostata, 103. 

 Phragmoccras, 63. 

 Physa, 105. 

 Phyninx, 105. 

 Physopsis, 105. 

 P-'leolus, 108. 

 Pinctada, 79. 

 Plagio!a, 91. 

 Plannella, 112. 



