386 
INDEX. 
Orthis Dalyana, Miller, 
PAGE. 
I, 225 
Orthis Leucosia, Hall, . 
PAGE. 
I, 225 
O. 
Davidsoni, tie Verneuil, 
I, 192, 221, 228 
0. 
lepida, Schnur, . 
. I, 259, 260 
O. 
Daytonensis, Foerste, . 
I, 222 
0. 
Linneyi, Xettelroth, 
U, 181 
O- 
dei.ecta, Conrad, 
I 
222; n, 333, 337 
0. 
Livia, Billings, . 
I, 225 
0. 
deformis, Hall, . 
I, 255 
0. 
Louensis, Walcott, 
I, 222 
o. 
demissa. Dolman, 
I, 191, 192 
0. 
loricula, sp. nov.. 
. 1, 197, 222; II, 333, 337 
0. 
Derby!, IVaagen, 
I, 214 
0. 
Lucia, Billings, . 
I, 225 
o. 
Deshaycsi, 
I, 243 
0. 
l 3 ’nx, von Bichwald, 
11, 202, 223 
o. 
dichotoma, Hall, 
I, 221 
o. 
Macfarlanii, Meek, 
. 1,190,212, 226 
o. 
discus, Hall, 
I, 210, 225 
0. 
Macleodi, Whitfield, 
I, 224 
o. 
disparilis, Conrad, 
1,191,221, 228 
o. 
Maria, Billings, 
I, 222 
0. 
dubia. Hall, 
I, 210, 225 
0. 
mai'morea, Waagen, . 
I, 214 
0. 
electra, Billings, 
I, 223 
0. 
Meeki, Miller, . 
. 1,206,207, 224 
0. 
elesaus, Bottchard, 
I, 219 
o. 
Merope, Billings, 
I, 242 
0. 
elegantula, Dalman, . I, 191 
192, 207, 224, 341 
0. 
Michelini, Leveille, 
1, 194, 219, 225, 343 
o. 
elegantula. var. parva, Foerste, 
I, 224 
o. 
mimica, Barrande, 
I, 200 
0. 
Klla, Hcdl, 
I, 221 
0. 
Minneaiiolis, N. H. Winchell, . . I, 224 
0. 
cmacerata, Hall, 
I, 207, 224 
0. 
Missouriensis, Sioallow, 
I, 225 
0. 
eminous. Hall, . 
I, 210, 225 
0. ? 
Morgan iana, Derby, . 
1,213,214,216, 226 
0. ? 
erratica. Hall, 
11, 157, 158 
0. 
multisecta. Meek, 
. I, 207, 224 
0. 
Eurelcetisis, AValcott, 
I, 232 
o. 
multistriata. Hall, 
. I, 212, 226 
o. 
Euryouo, Billings, 
I, 221, 228 
o. 
musculosa. Hall, 
. 1, 190, 210, 211, 225, 258 
o. 
Evadne, Billings, 
I, 223 
0. 
Mj'calc, Billings, 
. I, 217, 232 
0. 
cxcavata, Geinitz, 
I, 315 
o. 
Kevadensis, Meek, 
I, 226 
0. 
eximia, de Verneuil, 
I, 26G 
0. 
Nisis, Plall, 
I, 217 
0. 
expansa, Sowerby, 
I. 283 
0. 
oblata. Hall, 
. 1,210, 224, 225 
o. 
extonsa, Pander, 
I, 219 
0. 
occasus. Hall, . 
I, 225 
0. 
fasciata. Hall, . 
I, 200, 222 
0. 
occidcntalis. Hall, 
. I, 202, 222 
0. 
fausta, Foerste, . 
I, 222 
0. 
Olivieriana, de Verneuil, 
. . . I, 266 
0. 
fissicosta. Hall, 
I, 194, 221 
0. 
Orbignyi, Davidson, 
I, 283 
0. 
llabellites, Hall, 
I, 227, 228 
0. 
orthambonites , Billiugs, 
. I, 221, 228 
0. 
Jlabellulum, Hall, 
I, 221, 227 
0. 
Oveni, sp. nov.. 
I, 225 
0. 
llabellulum, Soiverby, . 
I, 227 
0. 
pahnata, Salter, 
II, 138 
o. 
gemmicula, Billings, 
I, 217, 244 
0. 
Panderiana, sp. nov.. 
Expl. Plate I 
0. 
gibbosa, Billings, 
I; 224 
0. 
Pecosi, Marcou, . 
. I, 210, 225, 226 
o. 
glypta, sp. nov., 
II, 359 
0. 
pecten, Dalman, .' 
I, 191 
0. 
Halil, Safford, . 
I, 200, 223 
0. 
pectiuella, Emmons, . 
I, 195, 196, 222, 228 
0. 
hemipronites, von Buoh, 
I, 238 
0. 
pectinella, LlOTOTons, var. semlovalis, HoW, 1,222, 228 
0. 
hipparionyx, Schnur, . 
I, 258 
0. 
pcduncul.aris. Hall, 
I, 226 
0. 
Hippolyte, Billings, 
I, 217, 221, 228 
0. 
Peloris, Hall, . 
.1,225, 343 
0.? 
Holstoni, Safford, 
I, 218, 340 
0. 
Penelope, Hall, 
. I, 211, 225 
0. 
hybrida, Sowerby, 
I, 210, 224, 342 
o. 
Pennian.a, Derby, 
. I, 210, 226 
0. 
idonea. Hall, 
I, 225 
0. 
Pennsylvanioa, Simpson, 
I, 225 
0. 
imporator, Billings, 
I, 222 
0. 
Pepina, Hall, 
. I, 230, 232 
0. 
imiH’essa, Hall, . . 
I, 212, 214, 226 
0. 
perelegans. Hall, 
. I, 207, 224 
0 
incisiva, Waagen, 
I, 210 
o. 
pervetil, Conrad, 
. I, 207, 224 
0. 
infera, Calvin, . 
I, 224 
0. 
l)lanoconvexa. Hall, . 
. I, 207, 224 
0. 
insculpta. Hall, 
I, 222 
o. 
Ijlatys, Bdlings, 
I, 218 
0. 
insignis. Hall, . 
I, 241 
0. 
jilicatella, Hall, 
. 1, 194, 196, 221 
0. 
insularis, Eichwald, 
I, 270 
o. 
porcata, McCoy, 
. 1,197, 222 
0. 
lowensis. Hall, , 
I, 212, 226 
0. 
prava. Hall, 
I, 225 
0. 
Ipliigcnia, Billings, 
I, 222 
0. 
productoides, Murchison, 
, . . I, 317 
0. 
Jamesi, Hall, 
I, 194, 195, 221 
0. 
Ijropinqua, Hall, 
I, 212, 226 
0. 
Kankakensis, McChesney, 
I, 221 
0. 
punctata. Hall, 
I, 217 
0. 
Kaskaskiensis, MoChesney, 
I, 350 
0. 
punctosti’iata, . 
I, 217 
o. 
Keoknk, Hall, 
I, 262 
0. 
Qiiacoensis, Matthew, . 
I, 232 
0. 
laticosta. Meek, . 
I, 223 
o. 
quadrans. Hall, 
I, 224 
0. 
Laurenttna, Billings, . . I, 
19 
231, 238 ; II, 337 
o. 
quadricostata, Vannxem, 
11, 193 
0. 
lens, Phillips, 
II, 101 
0. 
recta, Conrad, 
I, 222 
0. 
lenticulai'is, Wahlenberg, 
. I, 207, 224 
0. 
resupinata, Martin, 
1, 199, 211, 213, 226 
0. 
lentifonnis. Hall, 
I, 224 
0. 
resupiuoides, Cox, 
. . I, 213, 226 
0. 
Leonensis, Hall, 
I, 224 
0. 
retrorsa, Salter, 
. . I, 197, 222 
0. 
lepida, Hall, 
. I, 207, 221 
0. 
i-etrorsistria, McCoy, . 
I, 203 
