Part 10

_L. affine_, Marsh. Am Journ. of Sci., 3d Ser. vol. iv., p. 207.

Mesacodon, Marsh. Am. Journ. of Sci., 3d Ser. vol. iv., p. 212.

_M. speciosus_, Marsh, loc. cit.

Palæacodon, Leidy. Pr. Ac. Nat. Sc., 1872; p. 21. U. S. Geol. Survey of Terrs., 1871, p. 356; Cont. to Ext. Vert. Faun., p. 122.

_P. verus_, Leidy, loc. cit.

_P. vagus_, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 224.

Telmatolestes, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 206.

_T. crassus_, Marsh, loc. cit.

Tomitherium, Cope. Pr. Am. Phil. Soc., 1872, p. 470; U. S. Geol. Survey of Terrs., 1872, p. 546; Wheeler's Survey, vol. iv., p. 135, pt. ii.

_T. rostratum_, Cope, loc. cit.; U. S. Survey, 1872, p. 548.

Anaptomorphus, Cope. Pr. Am. Phil. Soc., 1872, p. 554; U. S. Geol. Survey of Terrs., 1872, p. 549.

_A. æmulus_, Cope, loc. cit.

Oligotomus, Cope. On some Eocene mammals, p. 2; U. S. Geol. Survey of Terrs., 1872, p. 607.

_O. cinctus_, Cope, loc. cit.

Opisthotomus, Cope. Wheeler's Survey, vol. iv., p. 151, pt. ii.

_O. astutus_, loc. cit., p. 152.

Pantolestes, Cope. Pr. Am. Phil. Soc., 1872, p. 467; Wheeler's Survey, v. iv., pt. ii., p. 145.

_P. longicaudus_. Pr. Am. Phil. Soc., 1872, p. 467; _Notharctus longicaudus_, U. S. Geol. Survey of Terrs., 1872, p. 549.

Sarcolemur, Cope. Pr. Ac. Nat. Sc., 1875, p. 256; Wheeler's Survey, v. iv., pt. ii., p. 147.

_S. pygmæus_, Cope. _Lophiotherium pygmæus_, Pr. Am. Phil. Soc., 1872, extras July 20; _Antiacodon pygmæus_, U. S. Geol. Survey of Terrs., 1872, p. 607; _Hyopsodus pygmæus_, Pr. Am. Phil. Soc., 1872, p. 461.

_S. furcatus_, Cope. _Antiacodon furcatus_. On some Eocene mammals, p. i.; U. S. Geol. Survey of Terrs., 1872, p. 608.

Thinolestes, Marsh. Am. Journ. Sc., 3d Ser. vol. iv., p. 205.

_T. anceps_, Marsh, loc. cit.

CARNIVORA.

Uintacyon, Leidy. Pr. Ac. Nat. Sc., 1872, p. 277; Cont. to Ext. Vert. Faun., p. 118.

_U. edax_, Leidy, loc. cit.

_U. vorax_, Leidy, loc. cit. Cont. to Ext. Vert. Faun., p. 120.

Sinopa, Leidy. Pr. Ac. Nat. Sc., 1871, p. 115; U. S. Geol. Survey of Terrs., 1871, p. 355; Cont. to Ext. Vert. Faun., p. 116.

_S. rapax_, Leidy, loc. cit.

_S. eximia_, Leidy. Cont. to Ext. Vert. Faun., p. 118.

Canis.

_C. montanus_, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii., p. 123.

Dromocyon, Marsh. Am. Jour. of Sc., 3d Ser. vol. xii., p. 403.

_D. vorax_, Marsh, loc. cit.

Harpalodon, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 216.

_H. sylvestris_, Marsh, loc cit.

_H. vulpinus_, Marsh, loc. cit., p. 217.

Limnocyon, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 126.

_L. verus_, Marsh, loc. cit.

_L. riparius_, Marsh, loc. cit., p. 203.

_L. agilis_, Marsh, loc. cit., p. 204.

Limnofelis, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 202.

_L. ferox_, Marsh, loc. cit.

_L. latidens_, Marsh, loc. cit., p. 203.

Oreocyon, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 406

_O. latidens_, Marsh, loc. cit.

Thinocyon, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 204.

_T. velox_, Marsh, loc. cit.

Viverravus, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 127.

_V. gracilis_, Marsh, loc. cit.

_V. (?) nitidus_, Marsh, loc. cit., p. 205.

Ziphacodon, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 216.

_Z. rugatus_, Marsh, loc. cit.

Vulpavus, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii., p. 124.

_V. palustris_, Marsh, loc. cit.

Miacis, Cope. Pr. Am. Phil. Soc., 1872, p. 470.

_M. parvivorus_, loc. cit.; _Viverravus parvivorus_, U. S. Geol. Survey of Terrs., 1872, p. 560.

Mesonyx, Cope. Pr. Am. Phil. Soc., 1872. p. 460; U S. Geol. Survey of Terrs., 1872, p. 550.

_M. obtusidens_, Cope, loc. cit. U. S. Survey, p. 552.

Synoplotherium, Cope. Pr. Am. Phil. Soc., 1872, p. 483; U. S. Geol. Survey of Terrs., 1872, p. 554.

_S. lanius_, Cope, loc. cit. U. S. Survey, p. 557.

Stypolophus, Cope. Pr. Am. Phil. Soc., 1872, p. 466; U. S. Geol. Survey of Terrs., 1872, p. 559; Wheeler's Survey, vol. iv., p. 109.

_S. insectivorus_, Cope. Pr, Phil. Soc., 1872, p. 469; U. S. Survey, 1872, p. 557.

_S. pungens_, Cope, loc. cit., pp. 466, 559

_S. brevicalcaratus_, Cope, loc. cit., pp. 469, 560.

Megencephalon, gen. nov. This report, p 20.

_M. primævus_, sp. nov. This report, p. 20.

UNGULATA.

PERISSODACTYLA.

Anchitherium.

_A._ (?)----. This report, p. 23.

Orohippus, Marsh. Am. Jour. of Sc., vol. iv., p. 207; vol. vii., p. 247.

_O. pumilus_, Marsh, loc. cit., 3d Ser. vol. iv., p. 207.

_O. agilis_, Marsh, loc. cit., 3d Ser. vol. v., p. 407.

_O. major_, Marsh, loc. cit., vol. 3d Ser. vii., p. 248.

_O. gracilis_, Marsh, loc. cit., 3d Ser. vol. vii., p. 249; _Anchitherium gracile_ 3d Ser. vol. ii., p. 38.

_O. procyoninus_, Cope. Pr. Am. Phil. Soc., 1872, p. 466; U. S. Geol. Survey, 1872, p. 606.

Palæosyops, Leidy. Pr. Ac. Nat. Sc., 1870, p. 113; 1871, pp. 114, 118, 197, 229; 1872, pp. 168, 241; U. S. Geol. Survey, 1870, p. 355; 1871, p. 358; Com. to Ext. Vert. Faun., p. 27; Cope, U. S. Geol. Survey of Terrs., 1872, p. 591.

_P. paludosus_, Leidy, loc. cit. Cont. to Ext. Vert. Faun., p. 28.

_P. major_, Leidy. U. S. Geol. Survey of Montana, 1871, p. 359; Pr. Ac. Nat. Sc., 1872, pp. 168, 241; Cont. to Ext. Vert. Faun., p. 45.

_P. humilis_, Leidy. Pr. Ac. Nat. Sc., 1872, p. 168, 277; Cont. to Ext. Vert. Faun., p. 58.

_P. junius_, Leidy. Pr. Ac. Nat. Sc., 1872, p. 277; Cont. to Ext. Vert. Faun., p. 57.

_P. lævidens_, Cope. Pr. Am. Phil. Soc., 1873; U. S. Survey, 1872, p. 591.

_P. vallidens_, Cope. Pr. Am. Phil. Soc., 1872, p. 487; loc. cit., p. 592.

_P. minor_, Marsh. Am. Jour. of Sc., vol. ii., p. 36.

Limnohyus, Leidy. Pr. Ac. Nat. Sc., 1872, p. 242; Cont. to Ext. Vert. Faun., p. 58; Marsh, Am. Jour. of Sc., 1872, 3d Ser. vol. iv., p. 124.

_L. laticeps_, Marsh. _Palæosyops laticeps_. Am. Journ. Sc. 3d Ser. vol. iv., p. 122.

_L. robustus_, Marsh, loc. cit., p. 124, is same as _P. major_, Leidy.

_L. diaconus_, Cope. U. S. Geol. Survey of Terrs., 1872, p. 593.

_L. fontinalis_, Cope, loc. cit., p. 594.

Telmatherium, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 123.

_T. validum_, Marsh, loc. cit.

Leurocephalus, gen. nov. This report, p. 42.

_L. cultridens_, sp. nov. This report, p. 42.

Hyrachyus, Leidy. Pr. Ac. Nat. Sc., 1871, p. 229; 1872, pp. 19, 163; U. S. Geol. Survey, 1871, p. 360; Cont. to Ext. Vert. Faun., p. 60.

_H. agrarius_, Leidy, loc. cit.; _H. agrestis_. U. S. Survey, 1871, p. 357.

_H. eximius_, Leidy. Pr. Ac. Nat. Sc., 1871, p. 229; 1872, p. 163; U. S. Geol. Survey of Terrs., 1871, p. 361; Cont. to Ext. Vert. Faun., p. 66; Cope, U. S. Geol. Survey of Terrs., 1872, p. 595.

_H. modestus_, Leidy. Pr. Ac. Nat. Sc., 1872, p. 20; U. S. Geol. Survey of Terrs., 1871, p. 361; Cont. to Ext. Vert. Faun., p. 67; _Lophiodon modestus_, Pr. Ac. Nat. Sc., 1870. p. 109.

_H. nanus_, Leidy. Pr. Ac. Nat. Sc., 3d Ser. 1872, p. 20; U. S. Survey, 1871, p. 361; Cont. to Ext. Vert. Faun., p. 67.

_H. princeps_, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 125.

_H. implicatus_, Cope. On Some Eocene Mammals, p. 5; U. S. Survey, 1872, p. 604.

_H. crassidens_, sp. nov. This report, p. 52.

_H. imperialis_, sp. nov. This report, p. 50.

_H. intermedius_, sp. nov. This report, p. 51.

_H. paradoxus_, sp. nov. This report, p. 53.

Helaletes, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 218.

_H. boöps_, Marsh, loc. cit.

_H. latidens_, sp. nov. This report, p. 54.

Lophiodon.

_L bairdianus_, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii., p. 36.

_L. affinis_, loc. cit., p. 37.

_L. nanus_, loc. cit.

_L. pumilus_, loc. cit., p. 38.

Lophiotherium.

_L. sylvaticum_, Leidy. Pr. Ac. Nat. Sc., 1870, p. 126; Cont. to Ext. Vert. Faun., p. 69.

_L. Ballardi_, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii., p. 39.

Orotherium, Marsh. Am: Jour. of Sc., 3d Ser. vol. iv., p. 217.

_O. mintanum_, Marsh, loc. cit.

Helohyus, Marsh. Am. Journ. of Sc., 3d Ser. vol. iv., p. 207.

_H. plicodon_, Marsh, loc. cit.

Thinotherium, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 208.

_T. validum_, Marsh, loc. cit.

ARTIODACTYLA.

All the forms described under this head are of uncertain reference.

Elotherium.

_E. lentum_, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii., p. 39.

Platygonus.

_P. Ziegleri_, Marsh, loc cit., p. 40.

Parahyus, Marsh. Am. Jour. of Sc., 3d Ser. vol. xii., 402.

_P. vagus_, Marsh, loc. cit.

Homacodon, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 126.

_H. vagans_, Marsh, loc. cit.

Ithygrammodon, gen. nov. This report, p. 56.

_I. cameloides_, sp. nov. This report, p. 57.

AMBLYPODA.

Cope. Wheeler's Survey, vol., iv., pt. ii., p. 179.

DINOCERATA.

Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 344; Ibid. vol. v., pp. 117-122, 293; Ibid. vol. vi., p. 300; Ibid. vol. xi., p. 163.

Uintatherium, Leidy. Pr. Ac. Nat. Sc., 1872, p. 169; Am. Jour. of Sc., 3d Ser. vol. iv., p. 239; Cont. to Ext. Vert. Faun., p. 96.

_U. robustum_, Leidy, loc. cit.; _Uintamastix atrox_, loc. cit.

_U. Leidianum_, sp. nov. This report, p. 3.

_U. princeps_, sp. nov. This report, p. 81.

Tinoceras, Marsh. _Titanotherium_ (?), Am. Jour. of Sc., 3d Ser. vol. ii., p. 35; _Mastodon_, loc. cit., vol. iv., p. 123, footnote; _Tinoceras_, loc. cit., vol. iv., pp. 322 and 323.

_T. anceps_, Marsh, loc. cit., vol. iv., p. 322.

_T. grandis_, Marsh, loc. cit., p. 323.

Dinoceras, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 344; Ibid. vol. v., pp. 117-122; Ibid. vol. v., p. 408.

_D. mirabilis_, Marsh, loc. cit., vol. iv., p. 344.

_D. lucaris_, Marsh, loc. cit., vol. v., p. 408.

_D. lacustre_, Marsh, loc. cit., vol. iv., p. 344.

Loxolophodon, Cope. Pr. Am. Phil. Soc., 1872, pp. 580, 488; U. S. Survey, 1872, p. 565.

_L. cornutus_, Cope, loc. cit.; U. S. Survey, 1872, p. 568.

Eobasileus, Cope. Pr. Am. Phil. Soc., 1872, p. 485; U. S. Survey, 1872, p. 575.

_E. pressicornis_, Cope. Pr. Am. Phil. Soc., 1872, p. 580; loc. cit.

_E. furcatus_, Cope. U. S. Survey, 1872, p. 580; _Loxolophodon furcatus_, Pr. Am. Phil. Soc., 1872, p. 580.

Coryphodon.

_C. hamatus_, Marsh. Am. Jour. of Sc., 3d Ser. vol. xi., p. 425.

Bathmodon, Cope. Pr. Am. Phil. Soc., 1872, p. 417; U. S. Geol. Survey, 1871, p. 350; 1872, p. 586.

_B. radians_, Cope, loc. cit.

_B. semicinctus_, Cope, loc. cit.

_B. latipes_, Cope, loc. cit.

Metalophodon, Cope. Pr. Am. Phil. Soc., 1872, p. 542; U. S. Geol. Survey, 1872, p. 589.

_M. armatus_, Cope, loc. cit.

TILLODONTIA.

Marsh. Am. Jour. of Sc., 3d Ser. vol. ix., p. 221; vol. xi., p. 249.

Anchippodus, Leidy. Pr. Ac. Nat. Soc., 1868, p. 232; Ext. Mam. N. Am., p. 403.

_Trogosus._ Pr. Ac, 1871, p. 113; Cont. to Ext. Vert. Faun., p. 71.

_A. riparius_, Leidy. Pr. Ac. Nat. Soc., 1868, p. 232; Cont. to Ext. Vert. Faun., p. 71 (as _Trogosus castoridens_).

_A. vetulus_, Leidy; _Trogosus vetulus_, Pr. Ac. Nat. Sc., 1871, p. 229; Cont. to Ext. Vert. Faun., p. 75.

Tillotherium. Am. Jour. of Sc., 3d Ser. vol. v., p. 485; Ibid. vol. xi., p. 249.

_T. hydracoides_, Marsh, loc. cit.

_T. latidens_, Marsh, loc. cit., vol. vii., p. 533.

_T. fodiens_, Marsh, loc. cit., vol. ix., p. 241.

Stylinodon, Marsh. Am. Jour. of Sc., 3d Ser. vol. vii., p. 532.

_S. mirus_, loc. cit.

RODENTIA.

Paramys, Leidy. Pr. Ac. Nat. Sc., 1871, p. 231; U. S. Geol. Survey, 1871, p. 357; Cont. to Ext. Vert. Faun., p. 110.

_P. delicatus_, Leidy, loc. cit.

_P. delicatior_, Leidy, loc. cit.

_P. delicatissimus_, Leidy, loc. cit.; Cont. to Ext. Vert. Faun., p. 111.

_P. robustus_, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 218.

_P. superbus_, sp. nov. This report, p. 84.

_P. leptodus_, Cope. U. S. Geol. Survey, 1872, p. 609.

Mysops, Leidy. Pr. Ac. Nat. Sc., 1871, p. 232; U. S. Geol. Survey, 1871, p. 357; Cont. to Ext. Vert. Faun., p. 111.

_M. minimus_, Leidy, loc. cit.

_M. fraternus_, Leidy. Cont. to Ext. Vert. Faun., p. 112.

Pseudotomus, Cope. Pr. Am. Phil. Soc., 1872, p. 467; U. S. Geol. Survey, 1872, p. 610.

_P. hians_, Cope, loc. cit.

Arctomys, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii., p. 121.

_A. vetus_, Marsh, loc. cit.

Geomys, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii., p. 121.

_G. bisulcatus_, Marsh, loc. cit.

Sciuravus, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii., p. 122.

_S. nitidus_, Marsh, loc. cit.

_S. undans_, Marsh, loc. cit.

_S. parvidens_, Marsh, loc. cit., 3d Ser. vol. iv., p. 220.

Tillomys, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 219.

_T. senex_, Marsh, loc. cit.

_T. parvus_, Marsh, loc. cit.

Tachymys, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 219.

_T. lucaris_, Marsh, loc. cit.

Colonymys, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 220.

_C. celer_, Marsh, loc. cit.

INSECTIVORA.

Omomys, Leidy. Pr. Ac. Nat. Sc., 1869, p. 63; Ext. Mam. of N. Am., p. 408; Cont. to Ext. Vert. Faun., p. 120.

_O. Carteri_, Leidy, loc. cit.

Washakius, Leidy. Cont. to. Ext. Vert. Faun., p. 123.

_W. insignis_, Leidy, loc. cit.

Passalacodon, Marsh. Am. Jour. of Sc., vol. iv. p. 208.

_P. litoralis_, Marsh, loc. cit.

Anisacodon,[4] Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 209.

[Footnote 4: Professor Marsh has subsequently used this name to designate a genus of the _Brontotheridæ_. Am. Jour. of Sc., vol. ix., p. 246.]

_A. elegans_, Marsh, loc. cit.

Centetodon, Marsh, Am. Jour. of Sc., 3d Ser. vol. iv., p. 209.

_C. pulcher_, Marsh, loc. cit.

_C. altidens_, Marsh, loc. cit., p. 214.

Hemiacodon, Marsh, Am. Jour. of Sc., 3d Ser. vol. iv., p. 212.

_H. gracilis_, Marsh, loc. cit.

_H. nanus_, Marsh, loc. cit., p. 113

_H. pucillus_, Marsh, loc. cit.

Entomodon, Marsh, Am. Jour. of Sc., 3d Ser. vol. iv., p. 214.

_E. comptus_, Marsh, loc. cit.

Entomacodon, Marsh, Am. Jour. of Sc., 3d Ser. vol. iv., p. 214.

_E. minutus_, Marsh, loc. cit.

_E. angustidens_, Marsh, loc. cit., p. 222.

Apatemys, Marsh, Am. Journ. of Sc., 3d Ser. vol. iv., p. 221.

_A. bellus_, Marsh, loc. cit.

_A. bellulus_, Marsh, loc. cit.

Talpavus, Marsh, Am. Journ. of Sc., 3d Ser. vol. iv., p. 128.

_T. nitidus_, Marsh, loc cit.

CHIROPTERA.

Nyctitherium, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 127.

_N. velox_, Marsh, loc. cit.

_N. priscum_, Marsh, loc. cit., p. 128.

Nyctilestes, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 215.

_N. serotinus_, Marsh, loc. cit.

MARSUPIALIA.

Triacodon, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii., p. 123.

_T. fallax_, Marsh, loc. cit.

_T. grandis_, Marsh, loc. cit. 3d Ser. vol. iv., p. 222.

_T. nanus_, Marsh, loc. cit., p. 223.

_T. aculeatus_, Cope. Pr. Phil. Soc., 1872, p. 460; U. S. Geol. of Terrs., 1872, p. 611.

_Genera incertæ sedis._

Stenacodon, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 210.

_S. rarus_, Marsh, loc. cit.

AVES.

RAPTORES.

Bubo.

_B. leptosteus_, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii, p. 126.

GRALLATORES.

Aletornis, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 256.

_A. nobilis_, Marsh, loc. cit.

_A. pernix_, Marsh, loc. cit.

_A. venustus_, Marsh, loc. cit., p. 257.

_A. gracilis_, Marsh, loc. cit., p. 258.

_A. bellus_, Marsh, loc. cit.

SCANSORES.

Uintornis, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 259.

_U. lucaris_, Marsh, loc. cit.

REPTILIA.

CROCODILIA.

Crocodilus.

_C. liodon_, Marsh. Am. Jour. of Sc., 3d Ser. vol. i., p. 454.

_C. affinis_, Marsh, loc. cit.

_C. Grinnelli_, Marsh, loc. cit., p. 455.

_C. brevicollis_, Marsh, loc. cit., p. 456.

_C. parvus_, sp. nov. This report, p. 91.

_C. clavis_, Cope. Pr. Am. Phil. Soc., 1872, p. 485; U. S. Geol. Survey, 1872, p. 612.

_C. sulciferus_, Cope. Pr. Am. Phil. Soc., 1872, p. 555; U. S. Survey, loc. cit.

_C. hetorodon_, Cope. _Alligator heterodon_, Pr Am. Phil. Soc., 1872, p. 544; U. S. Geol. Survey, 1872, p. 614.

_C. aptus_, Leidy. Cont. to Ext. Vert. Faun., p. 126.

_C. Elliotii_, Leidy, loc cit.

Diplocynodus.

_D. subulatus_, Cope. U. S. Geol. Survey, 1872, p. 613; _Crocodilus subulatus_, Pr. Am. Phil. Soc., 1872, p. 554.

_D. polyodon_, Cope. U. S. Geol. Survey, 1872, p. 614. (In his report to Lt. Wheeler, Prof. Cope says that "a single species, the _D. subulatus_, occurs" in the Bridger Basin, (p. 60). It is therefore probable that he has changed the _D. polyodon_, but we cannot find its synonym.)

LACERTILIA.

Saniva, Leidy. Pr. Ac. Nat. Sc., 1870, p. 124; U. S. Survey, 1870, p. 368; do., 1871, p. 370; Com. to Ext. Vert. Faun., p. 181.

_S. ensidens_, Leidy, loc. cit.

_S. major_, Leidy. Cont. to Ext. Vert. Faun., p. 182.

Chameleo.

_C. pristinus_, Leidy. Pr. Ac. Nat. Sc., 1872, p. 277; Cont. to Ext. Vert. Faun., p. 184.

Naocephalus, Cope. Pr. Am. Phil. Soc., 1872, p. 465; U. S. Geol. Survey, 1872, p. 631.

_N. porrectus_, Cope, loc. cit.; U. S. Geol. Survey, 1872, p. 632.

Glyptosaurus, Marsh. Pr. Ac. Nat. Sc., 1871, p. 105; Am. Jour. of Sc., 3d Ser. vol. i., p. 456.

_G. sylvestris_, Marsh, loc. cit.

_G. nodosus_, Marsh, Am. Jour. of Sc., vol. i., p. 458.

_G. ocellatus_, Marsh, loc. cit., vol. i., p. 458, and vol. iv., p. 306.

_G. anceps_, Marsh, loc. cit., vol. i., p. 458.

_G. princeps_, Marsh, loc. cit., 3d Ser. vol. iv., p. 302.

_G. brevidens_, Marsh, loc. cit., p. 305.

_G. rugosus_, Marsh, loc. cit.

_G. sphenodon_, Marsh, loc. cit., p. 306.

Thinosaurus, Marsh. Am. Jour. of Sc., 3 Ser. vol. iv., p. 299.

_T. paucidens_, Marsh, loc. cit.

_T. leptodus_, Marsh, loc. cit., p. 300.

_T. crassus_, Marsh, loc. cit., p. 301.

_T. grandis_, Marsh, loc. cit.

_T. agilis_, Marsh, loc. cit., p. 302.

Oreosaurus, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 303.

_O. vagans_, Marsh, loc. cit.

_O. lentus_, Marsh, loc. cit., p. 307.

_O. gracilis_, Marsh, loc. cit.

_O. microdus_, Marsh, loc. cit., p. 308.

_O. minutus_, Marsh, loc. cit.

Tinosaurus, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 304.

_T. stenodon_, Marsh, loc. cit.

_T. lepidus_, Marsh, loc. cit., p. 308.

Iguanavus, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 309.

_I. exilis_, Marsh, loc. cit.

Limnosaurus, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 309.

_L. ziphodon_, Marsh, loc. cit.; _Crocodilus ziphodon_, loc. cit., vol. i., p. 453.

OPHIDIA.

Boavus, Marsh. Am. Jour. of Sc., 3d Ser. vol. i., p. 323.

_B. occidentalis_, Marsh, loc. cit.

_B. agilis_, Marsh, loc. cit., p. 324.

_B. brevis_, Marsh, loc. cit.

Lithophis, Marsh. Am. Jour. of Sc., 3d Ser. vol. i., p. 325.

_L. Sargenti_, Marsh, loc. cit.

Limnophis, Marsh. Am. Jour. of Sc., 3d Ser. vol. i., p. 326.

_L. crassus_, Marsh, loc. cit.

Protagras, Cope. Pr. Am. Phil. Soc., 1872, p. 471: U. S. Geol. Survey, 1872, p. 632.

_P. lacustris_, Cope, loc. cit.

CHELONIA.

Testudo.

_T. Corsoni_, Leidy. Pr. Ac. Nat. Sc., 1871, p. 154; 1872, p. 268; U. S. Geol. Survey, 1871, p. 366; Cont. to Ext. Vert. Faun., p. 132; _Emys Carteri_, Pr. Ac. Nat. Sc., 1871, p. 228; U. S. Geol. Survey, 1871, p. 367. (Professor Cope refers this species to his _Hadrianus_.)

Hadrianus, Cope. Pr. Am. Phil. Soc., 1872, p. 468; U. S. Geol. Survey of Terrs., 1872, p. 630.

_H. allabiatus_, Cope. Pr. Am. Phil. Soc., 1872, p. 471; U. S. Survey, loc. cit.

_H. octonarius_, Cope, loc. cit. Pr. Am. Phil. Soc. 1872, p. 468.

EMYS.

_E. wyomingensis_, Leidy. Pr. Ac. Nat. Sc., 1869, p. 66; U. S. Geol. Survey, 1871, p. 367; Cont. to Ext. Vert. Faun., p. 140. _E. Feansii_, Pr. Ac. Nat. Sc., 1870, p. 123; _E. stevensoniansis_, loc. cit., p. 5. _E. Haydem_, loc. cit., p. 123.

_E. septarius_, Cope. U. S. Geol. Survey, 1872, p. 625.

_E. latilabiatus_, Cope. Pr. Am. Phil. Soc., 1872, p. 471; loc. cit., p. 626.

_E. gravis_, Cope. _Notomorpha gravis_ and _N. Garmanii_, Pr. Am. Phil. Soc., 1872, pp. 476-77; _E. gravis_, U. S. Survey, 1872, p. 626.

_E. testudineus_, Cope. U. S. Geol. Survey, 1872, p. 627; _Notomorpha testudineus_, Pr. Am. Phil. Soc., 1872, p. 475.

_E. euthnætus_, Cope. U. S. Geol. Survey, 1872, p. 628.

_E. megaulax_, Cope, loc. cit.

_E. pachylomus_, Cope, loc. cit., p. 629.

_E. terrestris_, Cope, loc. cit.; _Palæotheca terrestris_, Pr. Am. Phil. Soc., 1872, p. 464.

_E. polycyphus_, Cope, loc. cit., 630; _P. polycyphus_, loc. cit., p. 463.

Hybemys, Leidy. Pr. Ac. Nat. Sc., 1871; p. 103; Cont. to Ext. Vert. Faun., p. 174.

_H. arenarius_, Leidy, loc. cit.

Baptemys, Leidy. Pr. Ac. Nat. Sc., 1870, p. 4; U. S. Survey, 1870, p. 367; do., 1872, p. 367; Cont. to Ext. Vert. Faun., 157. (Professor Cope refers this genus to _Dermatemys Gray_).

_B. wyomingensis_, Leidy, loc. cit.

Chisternon, Leidy. Pr. Ac. Nat. Sc., 1872, p. 162.

_C. undatum._ Cont. to Ext. Vert. Faun., p. 341; _Baena undata_, Pr. Ac. Nat. Sc., 1871, p. 228; U. S. Survey, 1871, p. 369; Cont. to Ext. Vert. Faun., p. 161.

Baena, Leidy. Pr. Ac. Nat. Sc., 1871, p. 228; U. S. Survey, 1870, p. 367; do., 1871, p. 368; Cont. to Ext. Vert. Faun., p. 161.

_B. arenosa_, Leidy, loc. cit.; _Baena affinis_, U. S. Survey, 1870, p. 367.

_B. hebraica_, Cope. Pr. Am. Phil. Soc., 1872, p. 463; U. S. Survey, 1872, p. 621.

_B. ponderosa_, Cope. U. S. Survey, 1872, p. 624.

Anosteira, Leidy. Pr. Ac. Nat. Sc., 1871, p. 102, 114; U. S. Survey, 1871, p. 370; Cont. to Ext. Vert. Faun., p. 174.

_A. ornata_, Leidy, loc. cit.

_A. radulina_, Cope. Pr. Am. Phil. Soc., 1872, p. 555; U. S. Survey, 1872, p. 650.

Trionyx.

_T. guttatus_, Leidy. Pr. Ac. Nat. Sc., 1869, p. 66; 1870, p. 5; 1871, p. 228; U. S. Geol. Survey, 1870, p. 367; do., 1871. p. 370; Cont. to Ext. Vert. Faun., p. 176.

_T. uintaensis_, Leidy. Pr. Ac. Nat. Sc., 1872, p. 267; Cont. to Ext. Vert. Faun., p. 178.

_T. heteroglyptus_, Cope. U. S. Geol, Survey, 1872, p. 616.

_T. scutumantiquum_, Cope, loc. cit., p. 617.

_T. concentricus_, Cope, loc. cit.; Pr. Am. Phil. Soc., 1872, p. 469.

Axestus, Cope. Pr. Am. Phil. Sc., 1872, p. 462; U. S. Geol. Survey, 1872, p. 615.

_A. byssinus_, Cope, loc. cit., p. 616.

Plastomenus, Cope. U. S. Geol. Survey of Terrs. 1872, p. 617.

_P. Thomasii_, Cope, loc. cit., p. 618; _Trionyx Thomasii_, Pr. Am. Phil. Soc., 1872, p. 462.

_P. trionychoides_, Cope, loc. cit., 619; _Anostira trionychoides_, Pr. Am. Phil. Soc., 1872, p. 461.

_P. multifoveatus_, Cope, loc. cit., p. 619.

_P. ædemius_, Cope, loc. cit.; _Anostira ædemius_, Pr. Am. Phil. Soc., 1872, p. 461.

_P. molopinus_, Cope, loc. cit. p. 620; _Anostira molopinus_, Pr. Am. Phil. Soc., 1872, p. 461.

AMPHIBIA.

Incertæ sedis, I, Cope. U. S. Geol. Survey, 1872, p. 633.

PISCES

TELEOCEPHALI.

Clupea.

_C. humilis_, Leidy. Pr. Ac. Nat. Sc., 1856, p. 266; U. S. Geol. Survey, 1870, p. 369; do., 1871, p. 372; Cont. to Ext. Vert. Faun., p. 195.

_C. alta_, Leidy. Cont. to Ext. Vert. Faun., p. 196. (Cope refers these two species to _Diplomystus_ )

_C. pusilla_, Cope. Pr. Am. Phil. Soc., 1870, p. 382; U. S. Survey, 1870, p. 429.

Diplomystus, Cope. U. S. Geol. Survey Bulletin, vol. iii., No, 4, p. 808.

_D. dentatus_, Cope, loc. cit.

_D. analis_, Cope, loc. cit., p. 809.

_D. pectorosus_, Cope, loc. cit., p. 810.

Osteoglossum.

_O. encaustum_, Cope. U. S. Geol. Survey, 1870, p. 430.

Dapedoglossus, Cope. U. S. Geol. Survey; Bulletin, vol. iii., No. 4, p. 807.

_D. testis_, Cope, loc. cit.

_D. æquipinnis_, Cope, loc. cit., vol. iv., No. 1, p. 77.

Erismatopterus, Cope. U. S. Geol. Survey, 1870, p. 427.

_E. Rickseckeri_, Cope, loc. cit.

_E. levatus_, Cope, loc. cit., p. 428; _Cyprinodon levatus_, Pr. Am. Phil. Soc., 1870, p. 382.

_E. Endlichi_, Cope. U. S. Geol. Survey Bulletin, vol. iii., No. 4, p. 811.

Amphiplaga, Cope. U. S. Geol Survey Bull., vol. iii., No. 4, p. 812.

_A. brachyptera_, Cope, loc. cit.

Asineops, Cope. Pr. Am. Phil. Soc., 1870, p. 380; U. S. Geol. Survey, 1870, p. 425.

_A. squamifrons_, Cope. Pr. Phil. Soc., p. 381; U. S. Survey, 1870, p. 426.

_A. vividensis_, Cope. U. S. Survey, 1870, p. 426.

_A. pauciradiatus_, Cope. U. S. Geol. Survey Bull., vol. iii., No. 4, p. 813.

Mioplosus, Cope. U. S. Geol. Survey Bull., vol. iii., No. 4, p. 813.