Bifidaria 



Index to the Nautilus 



Biffrons 



Bifidaria. abbreviata 23: 5,v 29: 91 



afiiiiis23: 53 



agna20: 141. 23: 94. 29: 91 



armifera 11: 117. 13: 2, 13: 36, 

 13: 58. 13: 70. 13: 143. 14: 10, 

 14:30. 14: 76. 14:86. 14:93. 16: 

 51. 16: 58. 17: 131. 19: 58, 19: 

 63, 19: 96. 19: 135. 20: 35. 20: 

 101. 22:9, 22: 50.22: 52.22:65, 

 22: 104. 22: 108-9. 23: 52. 23: 

 94. 25: 116. 25: 124. 26: 91-3, 

 28: 11. 28: 17. 29: 19. 29: 89, 

 29: 91. 30: 66. 30: 72. 30: 135 



anniKera 20 : 1 7 



amiiKerella 15: 18. 29: 74 



ashnuniil2:49-50. 18: 122.22: 127 



bilamellata 22: 126-7 



calamitosa 33 : 64 



cincinnatiensis 11: 118. 19: 122 



clappi 22: 1. 22: 108. 22: 127, 26: 

 15. 29: 91 



contracta. 11: 117. 12: 50. 12: 128, 

 13: 2. 13: 46. 14: 30. 14: 56. 14: 

 76. 14: 93. 16: 51. 18: 65. 19: 40. 

 19:58.19:63.19: 135.20: 17.20: 

 35.20: 81.20:97.20: 101. 21:8, 

 21:76.21: 102-3.22:65.22: 120, 

 23: 53. 23: 94. 24: 92. 25: 35. 25 

 67. 25: 113. 25: 116. 26: 15. 26 

 17. 26: 19-20. 26: 95-6. 28: 11 

 28: 17.29: 19.29:89.29:91.29 

 123, 29: 143. 30: 66. 30: 72. 30 

 135, 32: 136, 34: 93 



corticarta 11: 117. 14: 56. 19: 58, 

 20: 101.22: 111.25: 113,25: 116, 

 26: 15. 28: 11.29: 123 



cristata 18: 107. 22: 9. 22: 65. 22: 

 104. 23: 94. 25: 116. 29: 89. 30: 

 135 



curta 11: 118. 19: 122. 



curvidens 11: 118. 14: 31. 19: 58, 

 19: 122. 25: 80 



dalliana 12: 91. 13: 14. 13: 16. 22: 

 127 



duplicata 25: 116 



eyriesii 19: 78 



floridana 11: 118. 25: 116 



fordiana 11: 117, 23: 94 



gracilis 11: 118, 19: 122-3, 26: 15 



hcbes 11: 117, 14: 10 



hcmphilli 30: 38. 30: 83. 33: 64 



holziiiKcri 13: 2. 11: 117. 14: 83, 

 14: 86. 19: 134. 22: 120. 23: 94, 

 25: 116. 28: 81. 29: 19. 



hordacca 11 : 117 



hordeacella 12 : 91 . 13 : 14. 13 : 16, 

 14: 10, 14: 74, 14: 86, 19: 130, 



21: 100. 21: 101-4. 21: 76. 22: 9, 

 22:65. 22: 77. 23: 94.25:92. 22: 

 127. 25: 116. 26: 17. 26: 31-4, 

 27: 64. 28: 38. 30: 135. 

 Bilidaria interpres 23: 52 



intiiscostata 22: 76. 22: 96, 22: 127 



landiirensis 29: 73 



mexicanonim 11: 118. 14: 10 



minor 12: 92. 13: 14. 13: 16 



minuta 29: 105. 29: 123. 30: 84 



montanella 19: 122 



oldroydae 30: 48 



quadridentata 12: 127. 13: 16, 18: 

 122 



parvidens 12: 128. 13: 14. 13: 16, 

 18: 122. 26: 81 



pellucida 19: 39 



pentodon 11: 118. 13: 3. 13: 15, 

 13: 46. 13: 79. 13: 103. 14: 31, 

 14: 64. 14: 74. 14: 93, 14: 103, 

 17: 131. 19: 58. 19: 121-2. 19: 

 134. 20: 101. 20: 141. 21:68. 21: 

 144. 22: 65. 22: 120. 23: 94. 24: 

 63. 25: 35. 25: 64. 25: 35. 25: 64, 

 25: 75. 25: 116. 26: 15. 27: 96, 

 28: 11. 29: 19. 29: 91. 29: 123, 

 30: 38. 30: 72. 32: 136 



perversa. 12: 90. 13: 14. 13: 16, 

 18: 122 



pilsbrvana 11: 118, 12: 128, 13: 

 14, 14: 83. 14: 85-6. 15: 58, 19: 

 121 



pilsbryi 28: 38 



plicidens 16: 75, 29: 73 



procera 11: 117. 12: 50. 14: 10, 

 14:31. 14:47. 14: 76. 14: 86, 20 

 35. 21: 8. 21: 77. 22: 104, 23 

 81. 23: 94. 24: 99. 25: 116. 25 

 124. 26: 95, 27: 96. 29: 89, 29 

 91. 30: 66 



rhoadsi 13: 46, 21: 99-100 



ruidosensis 13: 36. 23: 54 



rupicola 11: 117, 13: 46, 19: .^9 

 21: 100-4. 25: 92. 26: 12. 26 

 18-20. 26: 32. 26: 34. 27: 64 



saxicola 11 : 117 



servilis 11: 117. 13: 46. 27: 64 



similis 23 : 53 



tappaniana 19: 122. 19: 126. 19 

 134, 20: 81. 22: 9. 22: 65. 22 

 120. 23: 94. 24: 92. 25: 116. 25 

 124. 29: 91. 29: 105, 29: 124, 

 32: 136 



tuba 20: 108. 22: 77 

 bifoliata, Cancellaria 16: 101 

 bifoveata. Chloritis 19: 64 

 bifrons, Pholas 2: 34 



136 



