INDEX. 



557 



X^ptodesma flaccitlutn, Hall^ 



I>. Hector, Ball, . 



L. Jason, Hall, 



L. lepidnm, ffall, . 



L. Lesley!, Hall, 



L. Lichas, Halt, 



L. longispinum, Hall, 



L. Loxia«, Hall, . 



1j. Lysanfler, Hall, . 



L. 3faclurii, Hall, , 



L. Marcellense, ffall, 



h. Mathcii, ffall, . 



L. Medon, ffall, 



I>. Mentor, ffall, . 



L. . Moi'toni, ffall, 



Jj. mytiHfornie, ffall, 



L. naviforme, Hall, . 



L. Nereus, ffall, . 



L. Orcus, ffall, 



L. Orodes, Ball, . 



L. Orus, fliia, . 



L. patuIuin,/7aU, . 



L. Pclops, ffall, 



h. Phaon, ffall, . 



L. potens, ffall, 



L. potens, var, jiivens. Hall, 



L. propin(|aum. Hail, 



L. protextum, {Conrad) Ball, 



L. qnadratnm. Hail, . 



L. robuetum, ffaii, . 



L. RoKersi, Hail, 



I,. nido, fl<i«, 



L. Shumardi, floH, . 



L. sociale. Hail, . 



L. splnlgernm, (Connul) floK, 



L. Stephani, Hall, 



L. truncatam. Ball, . 



L. umbonatnn), ^oU, 



L. nmbonatam, var. depressum 



£<Ma fflalier, HaU, 



£. a>aerofi<<ra, Conrad 



£. r obtoUla, Hall, . 



£. rugatiriata. Hall, . 



IjImoptkra, ^nU, 



PAGE. 



826, 227 



196, a09, 213 



313 



. 195, 197 



233 



204, 230, 333, 234 



179,181,182,184,191, 192 



. 204 



. 215, 216, 218 



207, 223, 338 



176 



. 193, 194 



197 



. 305, 



. 182, 189, 



315, 

 306, 214, 223, 



236 

 190 

 335 

 300 

 317 

 218 

 235 

 219 

 336 

 ■225 

 234 



L. canrcllntn, Ball, . 



L. caneellaia, var. oceidetu, H. A. W., 



L. curvata, Ball, 



Ij. macroplen, I Conrad) Ball, 



L. obsoleta. Ball, 



L. paaperata, ffall, 

 LrciNA, . . . • • 



1j. lineata, OoUHfutt,  .- 



Iv. proavia. GoldfUsa. . . . . - 



L. iParacycUu) elliptiea, v.nr occidentalu. Hall & 

 Whilflcld, . . 440, 



L. [P. IZirnte, (Conrad) Hall &Wliitfleld, . 



L. {P. ) Ohioemit, Meek 



. 214, 220, 



. 230, 



188, 190, 193, 198, 199 



. 189 



331 



. 183, 496 



233 



181, 185, 189, 191, 193, 198, 199 



176, 178, 179, 187 



. 221 



180, 191 



. 187 



177,183, 184 



. 194 



211 



. 198 



203 



ai 



251 



84 



15 



(xllil 243 



244 



. 244 



250, 251 



244, 246, 250 



243. 249 



. 243 



xxxix 



. 442 



HaU, 199, 200, 202, 



. Ilx, 



246, 



lix, 



440 



LtrutfLiCARDiim, Uuiuter, 



£. aeuiirostrum. Hall, 



L, cortum. Hall, . 



J,. fragile, BtM, 



\j. Marcellense, ( Vonuxem) Ball, 



L. orblcalare. Ball, . 



441 



441 



442 



xvli, xxxvi, xzxvlil, 434 



4:i7 



. xxxTiii, 436, 437 



. xxxviii, 434 



. 439 



436, 438 



Lunulicardium omatuml Hull 



L. ornntuni. Hall. 



L. rude. Hall, 



Ij. transveisam, Hall, 



Lyriopectex, Hall, . 



L. anomi.T?formis. HaU, 



L. cymbaloil. Hall, 



L. Dnrdanus, Hall, 



T.. fasciatus, Hall, 



L. interradiatus, ffall, 



L. macrodontus. Hall, 



L. magniflcus, ffall, . 



L. orbiculatus, HaU, 



L. parallelodontus, HaU, 



L. Polydorus, Hall, 



L. Priamus, Hall, 



L. solox. Hall, 



L. tricostatus, ( Vanuxem) Hall, 



Macrodon, Lycett, 



M. Chemungensis, HaU, 



M. Hamiltonix, Hall, 



M. ovatus, Hall, . . 



PAGE. 

 . 4.i6 

 438, 437 

 . 435, 4.'i7 

 . xxxviii, 439 

 . (Xll)2, 40, 74 

 53 

 45, 47, 60 

 41 

 . 66 

 44, ,50 

 43, 45, 46, 48, 50, .W, 55, 57 

 45, 47, 48, .50, 51, .57 

 41, 43, 81 

 40, 42 

 45, 60, 57 

 43, .50, 54, 56 

 . 45, 51, 56 

 47, 48, 51 

 . XXTiii, 349, 407 

 xxviii, 360 

 xxviii, 349, 351 

 . 361 



M. parvus. White (f Whitfield, ... 351 



Margabon, . . . Ivi 



Megambonia, Ball, .... Iv, 515 



M. bellistriata, ..... Iv, 515 



M. cardiiforniis, BaU, Iv, 616 



M.? laniellosa, . . . . . Iv 



M. Lyoni, BaU, ..... 433 



M. subcardiiformis, (Hall) 8 A. Miller, . B15 



Meristina, Ball, ...... 28 



MiCRODON, Conrad, .... xxv, 307, 312 



M. bellistriatus, .... 310, 311 



M.1 complanatus. Hall, .311 



M. complanatus, ..... 309 



M. Rregarius 309 



M. reservntus. Hall, ..... sig 



M. lenuistriatns, .... 310, 312, 313 



M. (Cypricardella) bellistriatus. Hall, 308 



M. (C. ) complanatus, Hall, . 311 



M. (C. ) grcgarius. Ball, 309 



M. (C. ) major. Ball, . . 307 



M. (C. ) tenuistrialus. Hall, . xxv, 310 



M. IMicrodonella) [Eo(lon)beUistriatusAConr.)UnU, 308 



^f (if. )(E. ) complanatus, Ua\], . 311 



M. tU. ) (E. ) gregarius. Hall, . . 809 



if. Of. ) (E. ) tenuistrialus. Hall, . 310 



Microdonella, (Ehlert, .... xxv, 307 



M. bellistriata, (Conrad) Qj^lilert, . xxv, 308 



M. complanata, ...... 307 



M. gregaria. Hall, ..... 309 



if. tenuistriata, Hall, ..... 310 



Modieli.a, Ball, ..... iiv, 514 



M. pyi^msna, [Conrad) Ball, . Iiv, Iv, 514 



MODloi.A, Lamarck, . (xiv) Iv, 175, 236, 267, 614 



M. angn.sta, Dana, ..... 516 



M. concentrica, (Conrad) .ffoU, ... 275 



if. metella. Hall, . . . " . . .266 



if. pracedens. Hall, ... 267, 268 



M. (Mytilops) metella, fliiK, . .368 



M. (M. ) prtecedcns, HaU, 367 



Modiolopsis perovata. Meek if Worthen, . 273 



JIoDIOMORPiIA, BaU, xxiii, xxiv, 1, 176, 234, 269, 272, 293, 352 



71 



