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The structure and relationships of certain eleutherozoic Pelmatozoa
Volume 41, Page 1
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A revision of the forms of the ladder-backed woodpecker (Dryobates scalaris [Wagler])
Volume 41, Page 139
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Descriptions of recently discovered Cladocera from New England
Volume 41, Page 161
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A new unstalked crinoid from the Philippine Islands
Volume 41, Page 171
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The crinoid fauna of the Knobstone formation
Volume 41, Page 175
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The Waverlyan period of Tennessee
Volume 41, Page 209
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Names applied to bees of the genus Nomada, found in North America
Volume 41, Page 225
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The west American mollusks of the genus Amphithalamus
Volume 41, Page 263
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Descriptions of three new batrachians from Costa Rica and Panama
Volume 41, Page 285
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The west American mollusks of the genus Nodulus
Volume 41, Page 289
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Descriptions of one new genus and three new species of Ichneumon flies
Volume 41, Page 293
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A new fossil alligator from the Hell Creek beds of Montana
Volume 41, Page 297
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A revision of the fossil ferns from the Potomac group which have been referred to the genera Cladophlebis and Thyrsopteris
Volume 41, Page 307
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The Recent and fossil mollusks of the genus Alvania from the west coast of America
Volume 41, Page 333
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Two new species of parasitic nematodes
Volume 41, Page 363
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The American species of Sphyradium with an inquiry as to their generic relationships
Volume 41, Page 371
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New sawflies in the collections of the United States National Museum
Volume 41, Page 377
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Crystallized variscite from Utah
Volume 41, Page 413
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Descriptions of fifteen new fishes of the family Cheilodipteridae, from the Philippine Islands and contiguous waters
Volume 41, Page 431
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Descriptions of new species of wasps in the collections of the United States National Museum
Volume 41, Page 447
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A new mosasauroid reptile from the Cretaceous of Alabama
Volume 41, Page 479
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The west American mollusks of the genus Cingula
Volume 41, Page 485
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The characters of the fossil plant Gigantopteris Schenk and its occurrence in North America
Volume 41, Page 493
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Description of a new salamander from Iowa
Volume 41, Page 517
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A review of the Sparidae and related families found in the waters of Japan
Volume 41, Page 521
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The Crustacea of the order Cumacea in the collection of the United States National Museum
Volume 41, Page 603
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The squaloid sharks of the Philippine Archipelago, with descriptions of new genera and species
Volume 41, Page 677
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The mounted skeletons of Camptosaurus in the United States National Museum
Volume 41, Page 687
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Preservation of osseous and horny tissue
Volume 41, Page 697