Gerrinæ, 204

Gerris, 204

Gilmore, C. W., 431

Gilmore's Crocodile, Dimensions of Skull,
433

Girty, Geo. H., 407, 416, 420, 421
Glaphurus primus, 362, 378

pustulatus, 357, 381, 531, 532, 533,
543, 545, 546, 550, 566
sp.? 357.377

Glyptocystites forbesi, 537, 555, 566
sp.? 556

Gnathodus impictus, 225

punctatus, 225

Godman, F. DuCane, 429
Goniobasis increbescens, 428

sp. ind., 426, 428
Goniogathus palmeri, 222
Goniopholididæ, 431
Goniopholis gilmorei, 431
Goniotites, 424

Goodenough, Miss Grace, 153"
Grabau, A. W., 175
Graphosominæ, 185

Greene County, Pennsylvania, 5
Greensburg, Pa., 183
Gryphoea planoconvexa, 426
Gypona flavilineata, 220

octolineata, 220

pectoralis, 220

rugosa, 220

Gyponine, 220

Gyronema? rotalinea, 577
Gyrostachys, 483, 485

Halticus intermedius, 199
uhleri, 199

Hamilton Faunule, Canandaigua Lake,
N. Y., 149

Harmostes reflexus, 190

Harpactorinæ, 206
Harpedidæ, 330

Harpes antiquatus, 239, 381

ottawaënsis, 381

sp. ind., 328, 330

Harpina antiquatus, 330, 381
ottawaensis, 331, 378, 379, 381
cassiensis, 379

Harris, Gilbert D., 330, 499
Harrison Beds, Nebraska, 487
Hartman, C. V., 4

Hartman, Karl, 234

Hatcher, J. B., 1, 4, 178, 443

Hay, O. P., Two Species of Turtles
from the Judith River Beds of Mon-
tana, 178-182

Hebertella acuminata, 555

borealis, 517, 529, 554, 555, 556,
557, 558, 559, 562

exfoliata, 512, 513, 514, 527, 538,
539, 541, 550, 554, 563
imperator, 555, 557, 558, 559, 560
vulgaris, 516, 519, 520, 524, 533,

534, 535, 536, 537, 539, 540,
541, 542, 545, 546, 547, 550,
551, 556, 566

sp. ind., 501, 531, 532
Hebridæ, 204

Hebrus americanus, 204
Helianthemum canadense, 478
Helicoptera opaca, 213
pallida, 213

Helicotoma umbilicata, 557

vagrans, 522, 523
sp., 541. 557

Heliomera sol, 541, 564, 565

sp. ind., 563

Heliophyllum halli, 150, 158
Heliria scalaris, 211

Hell Gate Cañon, Montana, 411
Helochara communis, 219

Hemiptera of Western Pennsylvania, A

Preliminary List of, 183-232

Hemitrypa cribosa, 151, 160
Henicocephalidæ, 205
Henicocephalus culicis, 205

446, 447, 449

Editorials, 1-4, 233-236, 429, 430,
469-472

The Hyoid Bone in Mastodon
americanus, 464-467

A List of the Birds Collected near
Mombasa, East Africa, by William
Doherty, 453-463

A New Crocodile from the Jurassic
of Wyoming, 431-434
Remarks of, 449-451
Holopea plauta, 534, 545, 577

scrutator, 514, 522, 534
sp., 514, 543, 560

Homamus æænifrons, 185
Homalocenchrus virginicus, 476

Homoptera, 209

Hormotoma infrequens, 534

sp.? 523, 530, 533, 539
Horseshoe Hills, Montana, 411, 413
Hudson, Mrs. Eleanor M., 369

Hudson, Geo. H., 330, 367, 499, 595

Hunt, T. S., 582

Hustedia mormoni, 418, 419
Hyaliodes vitripennis, 200

Hydrometra lineața, 204
Hydrotrechus remigis, 204
Hydrometridæ, 204
Hydrometrinæ, 204
Hymenarcys æqualis, 187
nervosa, 187

Hyolithes acilis, 152, 173, 554, 557

sp. ind., 554, 557

Hypoparia, 230

Hypericum ascyron, 478

Ibidium beckii, 485

cernuum, 484, 485
gracilis, 486

incurvum, 484, 485
ochroleucum, 485
odoratum, 484, 485
parviflorum, 485
plantagineum, 485

Ibidium præcox, 485

strictum, 485

vernalis, 485

Ibidium, Key to, 485-486
Idiocerus alternatus, 218
cratægi, 218
duzei, 218
lachrymalis, 218
maculipennis, 218

nervatus, 218
provancheri, 218

Illænus americanus, 378

arcturus, 328, 329, 352, 381, 353
bayfieldi, 328, 348, 349, 378, 379,
381, 554

clavifrons, 328, 382
consobrinus, 379
crassicauda, 328, 382

erastusi, 351, 378, 379, 503, 517,
522, 531, 532, 537, 541, 545, 566
fraternus, 379

globosus, 238, 378, 379, 382, 506,

519, 520, 522, 523, 524, 529, 530,
531,532, 535, 536, 537, 539, 540,
545, 546, 548, 550, 554, 555, 556,
564, 566, 567
incertus, 379

indeterminatus, 378, 532

punctatus, 513, 565

tumifrons, 379

vindex, 238, 382

Ilnacora malina, 200

Naticopsis, 423

Nebraska Beds, Nebraska, 487
Neides muticus, 191
Neihert quartzite, 414
Neoborops vigilax, 197
Neoborus saxeus, 197

species nova? 197
Neottiglossa undata, 187
Napa apiculata, 208
Nepidæ, 208
Neritina, 426

Neurocolpus nubilus, 198
Neuroctenus simplex, 203

New Crocodile from the Jurassic of Wy-
oming, 431

New Zealand, Birds of, 430

Nezara hilaris, 188

Nieszkowskia, 371. 373, 374, 375
Nileus, 377

Niobrara Valley, Nebraska, 493
Nisus polyzonus, 496
Notonecta irrorata, 208

undulata, 208

Notonectidæ, 208

Nucula corbuliformis, 151, 169