TABLE OF CONTENTS. 



PAGES. 



Title-page and Table of Contents i-iv 



List of Plates v-vii 



List of Figures in Text i^~^ 



Errata et Corrigenda xi 



Editorial Notes i-6; 221-224 



L A New Genus and Some New Species and Subspecies of 



Abyssinian Rodents. By Childs Prick .... 7-28 

 IL A New Titanothcrc from the Uinta Eocene. By A. O. 



Peterson 29-52 



in. A Small Titanothcrc from the Lower Uinta Beds. By O. A. 



Peterson 53-57 



VL On the Osteology of the Genera Lasiopyga and Callithrix 

 with Notes upon the Osteology of the Genera Seniocebus 



and Aotus. By R. W. Shufeldt 58-85 



V. A New Rhynchocephalian from the Jura of Solenhofen. By 



Norman McDowell Gricr 86-91 



VL The Scales of the South American Characinid Fishes. By 



T. D. A. Cockerell 92-113 



VIL A Mounted Skeleton of Platigonus leptorhinus in the Car- 

 negie Museum. By O. A. Peterson 114-117 



VIIL Lichens collected During the Summers of 1912 and 1913 in 

 the Thunder Bay District, Ontario, Canada. By R. 



Heber Howe, Jr 118-124 



IX. A Preliminary List of the Fossil Plants Occurring in the Roof 



of the Pittsburgh Coal. By Norman McDowell Grier . 125-128 

 X. Some Undescribed Remains of the LTinta Titanothere, 



Dolichorhinus. By O. A. Peterson 129-138 



XL Notes on Triassic Fishes Belonging to the Families Cato- 



pteridae and Semionotidse. By C. R. Eastman . . . 139-148 

 XII. The Osteology of Promerycochoerus. By O. A. Peterson . 149-219 



XIII. Correction of a Generic Name. By O. A. Peterson . . 220 



XIV. A Skull of Bison crassicornis. By W. J. Holland ... 225 

 XV. The Serrasalminse and Mylinae. By C. H. Eigenmann. . 226-272 



XVI. Heads and Tails: A Few Notes Relating to the Structure of 



the Sauropod Dinosaurs. By W. J. Holland . . . 273-278 

 XVII. Dipterus Remains from the LTpper Devonian of Colorado. 



By C. R. Eastman 279-283 



XVIII. Notes on Tropical American Tettigonoidea (Locustodca). 



B3' Lawrence Bruner 284-404 



Index 405-423 



iii 



3^i3(p I 



