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On Trachycephalus, Scaphiopus and other Batrachia

Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 43-54

Descriptive enumeration of a collection of fishes from the western coast of Central America, presented to the Smithsonian Institution by Captain John M. Dow

Published in Proceedings of the Academy of Natural Sciences, Philadelphia, in 1863, in volume 15, pages 162-174

Descriptions of the gobioid genera of the western coast of temperate North America

Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 262-267

Descriptions of the genera of gadoid and brotuloid fishes of western North America

Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 242-254

Catalogue of the fishes of lower California, in the Smithsonian Institution, collected by Mr. J. Xantus

Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 80-88

Synopsis of the pomacentroids of the western coast of North and Central America

Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 213-221

Notes on the labroids of the western coast of North America

Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 221-224

On the gobioids of the eastern coast of the United States

Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 267-271

Synopsis of the echinoids collected by Dr W. Stimpson on the North Pacific Exploring Expedition, under the command of Captains Ringgold and Rodgers

Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 352-360

Notes on the Mimidæ of Jamaica

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 304-305

Enumeration of the Species of Plants Collected by Dr. C. C. Parry, and Messrs. Elihu Hall and J. P. Harbour, during the Summer and Autumn of 1862, on and near the Rocky Mountains, in Colorado Territory, lat. 39°-41°

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 55-80

Note on Some Recent Additions to the Ichthyological Fauna of Massachusetts

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 332-333

Additions to the Catalogue of Stars Which Have Changed Their Colors

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 159-162

Enumeration of the Arctic Plants Collected by Dr. I. I. Hayes in His Exploration of Smith's Sound, between Parallels 78th and 82d, during the Months of July, August and Beginning of September, 1861

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 93-96

On the Genus Periophthalmus of Schneider

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 271-272

Descriptions of Fossils from the Yellow Sandstones Lying beneath the "Burlington Limestone," at Burlington, Iowa

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 2-25

Dec. 8th

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 336

Note on the Species of Sebastes of the Eastern Coast of North America

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 333-335

Descriptions of Four New Species of Spermophilus, in the Collections of the Smithsonian Institution

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 157-158

Description of a New Species of Teredo, from New Bedford, Mass

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 280-281

Description of a New Species of Chœrojulis from North Carolina

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 205-207

Descriptions of New Species of Birds of the Families Vireonidæ and Rallidæ

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 106-107

June 9th

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 156

Descriptions of Fourteen New Species of Melanidæ and One Paludina

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 154-156

Description of a Collection of Jasper "Lance-Heads" Found near Trenton, New Jersey; And Remarks on the Locality, with Reference to Indian Antiquities

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 278-279

Contributions Towards a Monography of the Order of Pholadacea, with Descriptions of New Species: No. 2

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 143-146

Description of a New Species of Pleurocera

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 279-280

Description of the Genus Oxyjulis Gill

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 330-331

Synonymy of the Species of Strepomatidæ, a Family of Fluviatile Mollusca, Inhabiting North America. Part I

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 306-321

Description of a New Species of Unio and a Monocondylœa

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 190

Catalogue of the North American Sciænoid Fishes

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 28-32