I N !>i:.\ 



135 



i, * I 



a. Ill, 7ll 

 Stri-ptiirliynrliiis J 1 

 'l.'iitulis, 25. 

 pi-i-tiiiifurmis, 25 

 p\ ramiilalis, 25. 

 Striurru, 88. 

 Struphalosio, 22. 

 Sin.phomriia, 22, 23. 

 Wnnhvortlmiia, 26. 



,SV/-o///|.,)/i,vl('(/.i 



Suhrlymenia, 64. 

 Suessia, 16. 

 Synryelonema, 48. 

 Syriugites, 110. 



T. 



Taraarindiformis, 85. 

 Tanalia, 114. 

 Tancredia, 95. 



t tequilate ralis, 96. 



Warrenana, 96. 

 Tancrcdiid.ee, 95 

 Taphius, 107. 

 Temnochcilus, 64. 

 Tcrcbratula. 17. 



acuta, 70. 



IVrcbratulitoB, 17, 70. 

 lYtrubranchiata (Jurassic), 116. 

 Tetrabranchiata (Permian), 63. 

 Teudopsis, 118. 

 Thalamus, 124. 

 Theca, 5. 



aculenta, 5. 



gregaria, 5. 



lanccolata, 5. 

 Tbccalia, 34. 

 Thccosuiata (Potsdam Period), 



4. 



Theodoxus, 108. 

 Theora, 36. 

 Thracia, 36. 

 Thracia, 101. 



f arcuate, 102. 



pubescens, 101. 



tsubleevis, 102. 



. 



TnicliyiliTiiiiu, 127. 

 Tr:i|M-/.ium, 34. 

 TrematodiBcus, 64. 

 Trrinatospira, 16. 

 Trid. .iila. 



nrllites, 118. 

 Trigonia, 82. 



alifonuis, 82. 



clavcllata, 82. 



Conradi, 83. 



costata, 83. 



longa, 83. 



navis, 82. 

 aata, 83. 



quadratu, 82. 



uiitltilata, 83. 

 Trigonalx, 103. 

 Trigonella, 70. 

 Trigoniidx, 57. 

 Trigoniidte (Jurassic), 82. 

 Trigonocephalus, 6, 8. 

 Trigonotreta, 16, 17. 

 Triijonotreta, 19. 

 Triquetra, 91. 

 Tritogonia, 91. 

 Trochidae, 45. 

 Trochoceraa, 64. 

 Trochotoma, 45. 

 Tropidina, 112. 

 Tropidolcptus, 23. 

 Truncilla, 91. 

 Tubicola (Jurassic), 126. 

 Turbinites, 100. 

 Tubulus, 110. 

 Tulotoma, 114, 115. 

 Tyleria, 36. 



U. 



Uncites^ It!. 

 Unio, 92. 



II ur ;il is. 1 13. 



nucalis, 92. 



phaseolus, 61. 

 Unioniilx, 90. 

 Uninnitfs, 100. 

 Unionium, 79. 

 Uniopsis, 91. 



V. 



Voginclla, 5. 

 Vali-nlii, 11-.'. 



cristntn, 11 J 



piscinalis, 112. 



tscabrida, 113. 



triciiriimta, 112. 

 I'alcatidv, 111. 

 Valvcarius, 112. 

 Vanuxcinia, 29, 88. 

 Velates, 108. 

 Veiu-ricarUia, 34. 

 N'rinis daumoiiiensig, 93. 

 Verticordia, 57, 84. 

 Verticordius, 84. 

 Viviparc, 114. 

 Vivipara, 114. 

 Viviparidee, 113. 

 Viviparus, 113. 

 Viviparus, 114. 



Oilli, 115. 



lincatas, 115. 

 Vola, 48. 

 Volsella, 84. 

 Volsella, 85. 



cancellata, S7 



formosa, 86. 



jM-rtriiiii*, 86. 

 Vortex, 106. 



W. 



Woodia, 34. 



X. 



Xipliotcuthis, 124. 



J 



in , 60. 

 ?gub-ilula, r, 



Zygospira, 16. 



