Mesozoic and Cenozoic Geology and Paleontology. 101 
do, Brontotherium gigas, and Hlotherium crassum; and from the Up- 
per Eocene of Wyoming,* Dinoceras laticeps. 
Dr. Joseph Leidy+ described, from the Bridger Group in the Buttes 
of Dry creek, Hyopsodus minusculus, Mysops fraternus, Washakius 
insignis, Saniva major ; from the Grizzly Buttes, Sinopa eximia ; from 
the Buttes, ten miles from Dry Creek Canon, Amia uintaensis; from the 
junction of Sand ‘and Green rivers, A. media; from Henry’s Fork, A. 
gracilis ; from Dry creek, Hypamia elegans ; from the junction of Big 
Sandy and Green rivers, Lepidosteus atrox, now Clastes atrox ; from 
Washakie station, LZ. simplex, L. notabilis, now Clastes notabilis ; from 
Big Sandy and Green rivers, Pimelodus antiquus, Phareodus acutus, 
Clupea alta, now Diplomystus altus; from the Miocene of Bridger 
creek, a tributary of John Day’s river, one of the branches of the 
Columbia, in Oregon, Dicotyles pristinus, Hlotherium imperator ; from 
Washington county, Texas, Anchitherium australe ; from Red Rock 
creek, a tributary of Jefferson Fork of the Missouri, Anchitherium 
agreste ; from Richmond, Virginia, Procamelus virginiensis, Tautoga 
conidens,{ Acipenser ornatus; from the Post-pliocene of California, 
Felis imperialis, and Auchenta hesterna.,. 
Prof. F. B. Meek§S described, from Church Buttes, Physa bridgeren- 
sis; from twelve miles south of Fort Bridger, Pupa leidyi; and from 
the upper beds exposed at Separation, on the U.P. R. R., Limnewa com- 
mactiles.. : 
Prof. Lesquereux described, from South Pare near Castello’s Ranch, 
Ophioglossum alleni, and Planera longifolia; from Elko station, Seq- 
uoia angustifolia, Thuya garmant, and Abies nevadensis. 
In 1874, Prof. E. D. Copel] described, from the Bridger Group of 
South Bitter creek, Hobasileus galeatus, and Achawnodon insolens ; 
from:the Miocene of Colorado, Symborodon hypoceras, Anchitherium 
exoletum, and Hippotherium paniense. Hedescribed from the Eocene 
of the Middle and South Parks, Colorado,4]. Amyzon commune, and 
Clupea theta, now Diplomystus thetus; from the White River Group, 
Hypertragulus tricostatus, Hlotherium ramosum, now Peionax ram- 
osus, and Menotherium Jemurinum ; from the Loup Fork Group, 
* Am. Jour. Sci. and Arts, 3d ser., vol. vi. 
+ Cont. to Ext. Vert. Fauna, W. Terr. 
t Proc. Acad. Nat. Sci. 
2 6th Ann. Rep. U-. S. Geo. Sur. Terr. 
| 7th Ann. Rep. U.S. Geo. Sur. Terr. 
7 Bull. U.S. Geo. Sur. Terr. ° 
