244 



INDEX. 



PAGE 



Trigonia pUcato-costata, Nyst & Galeotti, F. S. 



131, 229 



— producta, iyce^if 60,67,208 



— product a, Terquem & Jourdy, F. S. 62 



— Proserpina, cT Orbigny ; see T. du- 



plicata 14 



— ' pseudo-cyprina, Contejean, F. S. ... 223 



— pulcbella, Agassiz 45, 66, 80, 185 



— pulchella, Reuss, F. S. ... 186, 227, 231 



— pullus, Sowerby 164 



— ^MMzZa, Nilsson, F. S 138 



— Vyrrhsi, d' Orbigtiy ; see T. spinosa 



137, 204 



— quadrata, Sowerby; see T. daedalea 



100, 104 



— quadrata, ^^a5s?0, F. S 104 



— radiata, ^eweif^ 73,208 



— 'R&xa&Sifx, Wright 49,71 



— recticosta, Zyce^f 16 



— reticulata, Agh&&iz,Y.^ 167,223 



— Rigauxiana, Munier-Chalmas, F. S. 



26, 223 



— Bobinaldina, d'Orbigny, F. S. 185, 227 



— ?'05^r?<?w, Agassiz, F. S 223 



— rudis, Parkinson ; see T. daedalea 



100, 109 



— — d Orbigny ; see T. nodosa ... 106 



— Rupellensis, d'Orbigiiy 28, 53, 58, 199 



— sanctce-crucis, Valang, F. S 96, 227 



— scafira, Lamark, F. S 130,227 



— scabricola, i^/ce^^ 130 



— scapha, Agassiz 183 



— Scarburgensis, Zryce^^ 31 



— sculp ta, i3/ce^# 157 



— — var. Cheltensis, Lycett 157 



— — var. Rolandi, Cross 157 



— semiculta, Forbes, F. S 96, 121, 230 



— sea?cos^ffl^a, Roemer, F. S 223 



— Sharpiana, Zyce^^ 79 



— signata, Agassiz ; Zieten's var. 



19, 29, 50, 61, 204 



— — — Knorrs's var., F. S. 204 



— siinile (Lyrodon), Bronn ... 66, 159, 222 



— s,mn&i2i, Parkinson 94, 136 



— Si'wMa^a, Agassiz ; see T. sulcataria... 136 



— /S'jween, Sowerby, F. S 224 



— Snaintonensis, iyee^^ 198 



PAGE 



Tngonia spectabilis, Sowerby 102, 111, 112 



— spmi/era, d'Orbigny, F. S 223 



— spinosa, Par^msow 136 



— — var. subovata, iyce^^ 201 



— spinosa, Agassiz ; see T. Archiaciana 137 



— — d'Orbigny ; see T. Vicary- 



ana 136 



— spinulosa. Young ^ Bird 37, 44, 66 



— striata, MZ/er 35,36 



— s^na^a, Phillips ; see T. spinulosa... 44 



— — d'Orbigny ; see T. spinulosa 44 



— — Quenstedt ; see T. Brodici 



35, 195 



— SM6coHcew<n'ca, Etalon, F. S 52 



— subcrenulata, d'Orbigny, F. S. ... 190, 229 



— subglobosa, Moms ^ iyee^^ 65,68 



— suborhicularis, Forbes, F. S. 



121, 224, 230 



— sM^Mn^MZaifa, McCoy, F. S 232 



— sulcata, Agaesiz ; see T. carinata 179, 181 



— sulcatutn (Lyrodon), Goldfuss ; see 



T. sulcataria 16, 135 



— sulcataria, ia?M 135 



• — suprajurensis, Agassiz, F. S 167, 223 



— Syriaca ; see T. undulata, Fromherz 200 



— Tealbyensis, iyce^^ 114 



— tenuicosta, Lycett 160, 163 



— tenuisulcata, Dujardin, F. S. 92, 142, 227 



— tenuitexta, iyce^^ 90 



— Thoracica, Morton, F. S 118, 229 



— Thurmanni, Contejean ;' (see pi. X, 



figs. 1,2) 237 



— Tombecki, De Lorio), Royer, and 



Tombeck, F. S 223 



— f n^o»«a, Waagen, F. S 223 



— tripartita, Fo/'fies 67,74 



— triquetra, Seebach 20, 26, 53 



— irwwca^a, Agassiz, F. S 223 



— tuberculata, Agassiz ; see T. spinu- 



losa 37, 44, 66 



— tuberculifer a, ^io\iczk&,'e.^.... 120,230 



— tuberculosa, iyce^f 33,34 



— undulata, Fromherz, F. S. 



55, 58, 74, 7Q, 77 



— — var. arata, Zyce<^ 200 



— uniophora, Qsx&YfY.^ 234 



— Upwarensis, iycef^ 143 



