Nos.
Titles.
Pages.
ART. XV.-The Geographical Distribution of the Mammalia,
considered in relation to the principal Ontological
Regions of the Earth, and the Laws that govern
the Distribution of Animal Life. By Joel Asaph
Allen ...................... ............. 313-378
ART. XVI.- Descriptions of New Extinct Vertebrata from the
Upper Tertiary and Dakota Formations. By E.
D. Cope ..........
..... 379-396
ART. XVII.— Notes on a Collection of Fishes from the Rio Grande,
at Brownsville, Texas. By David S. Jordan, M. D. 397-406
ART. XVIII.-A Catalogue of the Fishes of the Fresh Waters of
North America. By David S. Jordan, M. D..... 407-442
ART. XIX.—Description of a Fossil Passerine Bird from the Insect-
bearing Shales of Colorado. By J. A. Allen.
(PLATE I.) ...................... ....... 443-446
ART. XX.—The Coleoptera of the Alpine Regions of the Rocky
Mountains. By John L. LeConte, M. D. ........ 447–480
ART. XXI.- On the Orthoptera collected by Dr. Elliott Coues, U.
S. A., in Dakota and Montana, during 1873–74.
By Prof. Cyrus Thomas .................... 481-502
ART. XXII.—On the Hemiptera collected by Dr. Elliott Coues, U. S.
A., in Dakota and Montana, during 1873–74. By
P. R. Uhler................................. 503-512
ART. XXIII.—On the Lepidoptera collected by Dr. Elliott Coues,
U. S. A., in Montana, during 1874. By W. H.
Edwards .................................. 513-518
ART. XXIV. - An Account of some Insects of unusual interest from
the Tertiary Rocks of Colorado and Wyoming.
By S. H. Scudder....
519-544