LIST OF ILLUSTRATIONS. XI 



Page. 

 Fig. 71. Bolivina senariensis. X 40. «, apertural view; b, front view. 



Specimen without the long median costae 45 



72-73. Bolivina subangularis. X 60. 72, a, front view; b, apertural 



view. 73, front view of another specinfen (after Brady) 45 



74-75. Bolivina lobata. X 80. 74, a, front view; 6, apertural view (after 



Brady) 46 



76. Bolivina spinescens. X 75. a, apertural view; 6, front view 47 



77. Bolivina decussata. X 120 47 



78. Bolivina limbata. X 125. a, front view; b, same specimen from 



opposite side; c, end view 48 



79. Bolivina (Bifarina) porrecta. X 60. a, apertural view; b, front 



view 48 



80. Bolivina (Bifarina) strigosa. X 120. a, apertural view; b, front 



view 49 



81. Pleurostomella alternans. X 60. a, front view; b, view showing 



aperture 50 



82. Pleurostomella subnodosa. a, aperture, X 150; b, front view; c, 



side view, X 75 51 



83-84. Pleurostomella spinosa. X 75. 83, a, front view; b, apertural 

 view with the upper end of the chamber slightly broken and 



jagged. 84, front view of another more inflated specimen 52 



85. Verneuilina polystropha. X 30. a, apertural view; b, front view. 53 



86. Verneuilina propinqua. X 35. a, apertural view; b, front view. 54 



87. Verneuilina bradyi. X 40. a, front view; b, apertural view 55 



88. Verneuilina spinulosa. X 60. a, front view; b, apertural view. . 56 



89. Verneuilina spinulosa (?). X 60. Specimen with coiled young. . 56 

 90-91. Verneuilina affixa. X 15. 90, specimen attached to Rhabdam- 



mina. 01, apertural view of detached specimen 57 



92. Verneuilina pusilla (after Goes) 57 



93. Valvulina conica. X 40. a, front view; b, from above; c, from 



below 58 



94-95. Valvulina fusca. 94, attached specimen. X 40. 95, a, dorsal 



view; b, ventral view; c, side view, X 50 (after Brady) 59 



96-97. Chrysalidina dimorpha. X 70. 97, a, front view; b, apertural 



view (after Brady) 60 



98-99. Tritaxia tricarinata. X 35. 98, a, apertural view (after Brady).. 61 



100. Gaudryina scabra. X 45. a, apertural view; b, front view 63 



101. Gaudryina scabra. X 30. Specimen with wall containing sponge 



spicules 63 



102. Gaudryina flintii. X 20. «, front view; b, apertural view; c, side 



view 64 



103. Gaudryina quadrangularis. X 30. a, front view; b, end view . . . 65 



104. Gaudryina triangularis. X 40. a, end view; b, side view; c, front 



view 65 



105. Gaudryina convexa. X 60. a, end view; b, dorsal view; c, ven- 



tral view 66 



106. Gaudryina paupercula. X 15. a, front view; b, apertural view. 67 



107. Gaudryina bradyi. X 25. a, end view; b, front view; c, side 



view 67 



108. Gaudryina baccata. X 20. a, side view; b, front view (after 



Brady) 68 



109. Gaudryina chilostoma. X 25. a, front view; b, side view (after 



Brady) 69 



110. Gaudryina apicularis. X 60. a, front view; b, apertural view... 70 



