INDEX. 



387 



Orthis rcvcrsa, Salter, , , 



O. robustay Hall, 



O. rugiplicaia, Hall, 



O- Saffordi, sp. iiov,, 



O. ScoTiUii, Miller, 



O. sectostriata, 



O. Seraele, Hall, . 



O. senecta, sp now, 



O. siuuata, Hall, . 



O. socialis, Barrande, 



O. solitaria Hall, . 



O. spirij'eroides, McCoy, 



O. Stoncnsis, SaJ^hr/i, 



O, striatella, Dalman, 



O. striatula, Schlotheim, . 



O. strophoinenokU's, Halt, 



O. subajquata, Conrad, 



O. subcarinata. Hall, 



O. subelliptica, niiiie and Wkiijiel,!, 



O. suborbicularis, Hall, . 



O. subquadrata, Hall, . . I 



O. supcrstes, sp. nov., 



O. Swallovi, Hall, 



O. Sweeneyi. JV. H. Winckdl, 



O. testudinaria, Dalman, I, 19U, liil 



O. tetragona, 



O. Thiemii, White, 



O. Tioga, Hall, 



O. ti'iccnaria, Conratt, 



O. triplicalella, Meek, 



O. Tritonia, Bilhngs, 



O. tubulostriata. Hall, 



O. Tulliensis, Hall, 



O. ubcris, Billings, 



O. um'jonata, Conrad, 



O, utiibraculum,Sc\\\o{\\Q\n\, 



O. Vanuxemi, HalU 



O. Vanuxemi, var. pulchclla, Uerrick, 



O. varica, Conratt, . 



O, Wan^enheimi, de "N'erneuil, 



O. Wisbyensis, Limtstrain, 



O. Whitfieldi, iV. H. WimMl, . 



O. zonata, Dainian, 



O. (Dalmanellnl air.uaria, i?p nov., 



O. (Dalmauella) supcrstes, sp. nov., 



O. (rhusiomys) loricula, sp. nov., 



O. (RliipiilomcUa) Oweni, sp. nov., 



O. (Scbizophoria) senecta, sp. nov., 



Orthisinaadscendens, Pander, . 



O. anom.al.a, d'Orbi^ni/, 



O, cava, Ban-ande, 



O. crassa, 3Ieck and Ilaydcn, 



O, festinata, Elllinjrs, 



O. gri"anda?va, Billings, 



O. Missouriejms, Swallow, 



O, occidentalis, Xcwberry, 



O. orientalis, Wllitficld, . 



O. transversa, AValcott, 



O. Verneuili, Elclnval I, 



Ortborbynchula Lmneyi, Xetfelroili, 

 OrUiostiopbia strophomenoides. Hall, 

 Orchothetes desideratus, sp. nov., . 



PAGE. 

 I, 197 

 I, 262 

 I, 217 

 I, 218, 340 

 I, 222 

 I, 221 

 I, 223 



I. 



I, 198, 



I, 



I, 



22G 

 213 

 200 

 225 



I, 271 



1, 



I, 



I, 191, 



I, 



. 1, 199, 



194, 207, 



I, 207, 



I, 



I, 



191, 19U, 197, 



I, 217, 



I, 213, 



I, 19(i, 222, 



192, 203, 206, 

 217, 218, 



I, 



I, 



I, 212, 



I, 191, 193. 



I, 194, 



I, 217, 



I, 210, 



I, 212, 



I. 



II, 



I, 248, 



I, 225, 



I. 



204, 203, 



I, 



I, 



I. 



224 

 303 

 213 

 223 

 224 

 224 

 225 

 223 

 3)1 

 224 

 22ti 

 228 

 207 

 224 

 219 

 225 

 226 

 2.'1 

 221 

 232 

 223 

 226 

 224 

 55 

 23C 

 312 

 225 

 223 

 319 

 207 

 221 



I, 191 

 I, 341 

 I, 34^ 

 I, 341 

 1,343 

 I, 343 

 , 191, 237 



237 

 271 



I, 

 I, 

 I. 

 I, 

 I, 

 I. 

 . I, 231, 

 11. 182, 

 I. 



I, 262 

 230 

 231 

 2S6 

 266 

 230 

 230 

 237 

 337 

 200 



I. 345 



Orthothetes pccten, Dalman, . 



O. radiata, Fischer, 



O. socialis, Fisclier, 



O. subplanus. Conrad, 



O. uuxhviiQviXnm, von Buck, 



Parastrophia Grcenii, sp. nov., 



P. (liverffcns, sp. nov,, . 



P. latiplicata, sp. nov., . 



P. multiplicala, sp. nov., 



Parazyga Deweyi, Hall, 



P. hii-suta, Hall, . 



Patella anomala, Miiller, . 



P. antiqua, Schlotlieira, . 



P. implicata, Sowerby, 



Paterina .Swantoucnsis, Walcott 



Patcrula Bobemica, Barrande, 



Pentagonia Peersi, Cozzens, 



P. unisulcata, Conrad, 



P. unisulcata, var. biplicutn. Halt, 



P. unisulcata, var. uniplicata, Hall, 



Pentamerella ai-ala, Conrad, , 



PACE. 



dubia, Hall, 

 niicula, Hall, 

 obsolesceus. Hall, 

 papilionensis. Hall, 

 Pavilionensis, Hall, 



Pentarnerus Areyi, sp. nov.. 



P. Aylesfordi, Sowerby, . 



P. Barramlii, BiUiug-S, 



P. Bastdciricus, de Verncuil, 



P. bl.-uiuatiis. McChesney, 



P. borcalis, Eichwaltl, 



P. Ctilletti, iliUer, . 



P. complanatus, Xettclroth, 



P. crassicosta, Ilall and "Whitficdi 



P. cylindricus, Hall, 



P, decHssatus, Whitcavcs, 



P. elongatus, Vanuxcni. 



P. Esthonus, Eictiwald, . 



P. fornimtus. Hall, . 



P. galeatus, Dalman, . . II, 



P. Knappi, Hall and Whitfleld, 



P. Knighti, Sowerby, 



P. lajvis, Sowerbij, . 



P laqueatus, Conrad, , 



P. lens, Sowerby, . 



P. lin^uifer, Sowerby, . . n, 



P. Littoni, Hall, . ■ . 



P. nofjilis, Emmons, 



P. nucleus. Hall, 



P. Xijsius, Hall and WhitQcId, 



P oblongus, Sou-erl/i/, I, 



P. oblongus, var. .Maquokcta, 



P. ohlongus, var. snorectus, var. 



P. occidentalis, Hall, 



P. pergibbosus, Hall and Whitfield, 



P. pseudobasnictrteus, Tscliemyschew, 



P. pseudogaleatus, Hall, 



P. reversus, Billings, 



P. Itoemeri, sp. nov., 



P. rotundatus, Sowerby, . . . .11, 



P Samojefllcus, Keyserting, . . .11, 



I' Sidxri, von Bucli, . . . U, 246, 



350 

 256 



I. 



I, 



I, 256 



I, 256 



. I, 2.39, 345 



II, 222, 3C7 



II, 222, 3(50 



222, 2J3, 308 



222, 223, 307 



1-28,129, 114 



111, 128, 



I. 122, 



I. 



I, 



II, 



I. 



II. 



H. 



II. 



U, 



H. 212. 



II, 212, 



II, 



H, 



129 

 150 

 158 

 158 

 321 

 79 



ao 



81 

 81 

 81 

 2(3 

 213 

 213 

 213 



H, 245 

 11, 245 



II, 



213 



230 

 244 

 235 



2'12, 213 



42 



II 



II 



II 

 U, 23J, 239 

 II, 234, 210 



II. 



II. 



II. 

 II. 237, 



II, 



II, 



II 



212, 213, 



212,243, 



U. 

 II. 

 II, 

 II. 

 II. 

 144. 

 II. 



235 

 235 

 235 

 ■238 

 233 

 252 

 210 

 214 

 217 

 2.">S 

 236 

 237 

 234 

 251 

 245 

 231 



288; U, 231, 

 ar. nov., 

 uov , II, 

 . II. 



II, 234 



. II. 247 



II. -235 



237, 233, 218 

 II, 239 



238, 239, 

 239,210, 



n, 239, 

 II. 

 II, 

 II. 



240 

 248 

 210 

 235 

 212 



217 

 2-23 

 210 

 247 



