xii MONOGRAPHS OF NORTE AMERICAN RODENTIA. 



Pages. 



W >N< ►< HRAPH VI.— CASTORIDK. By ./. A. Alien 427-454 



Title 127 



Table of Contents 429 



Family Castoridffl 431 



Bibliographical Appendix 451 



.MONOGRAPH VIL— ZAPODIDvE. By Elliott Coues 455-480 



Title 455 



Letter of Transmittal 457 



Table of Contents * 459 



Family Zapodido? 461 



MONOGRAPH VIII.— S ACCOM VI DJE. By Elliott Coues. 481-542 



Title 481 



Letter of Transmittal 483 



Table of Contents 485 



Family Saccomyidse 487 



MONOGRAPH IX.— HAPLODOXTID^]. By Elliott Coues. 543-600 



Title 543 



Letter of Transmittal 545 



Table of Contents 547 



Family Haplodontidae 549 



MONOGRAPH X.— GEOMlIDiE. By Elliott Coues 601-630 



Title 601 



Table of Contents 603 



Letter of Transmittal 605 



Family Geomyidae ■ 607 



MONOGRAPH XL— SCI17RIDA:. By J. A. Allen 631-940 



Title 631 



Letter of Transmittal 633 



Table of Contents 635 



Family Sciuridas 637 



Extinct American Scinridse 929 



Appendix A. — Synoptical List of the Fossil Rodentia of 



North America. By J. A. Allen 943-950 



Appendix B. — Material for a Bibliography of North 



American Mammals. By Theodore Gill and Elliott Coues. 951-1082 



Index to the Whole Volume 1083-1091 



