214 PROCEEDINGS OF THE PALEONTOLOGICAL SOCIETY 



erected the restoration of the flesh was made by Professor Lull, based on a 

 most careful study of the musculature of recent animals. The muscles were 

 built up over the actual bones and every attention was paid to the rugose bone 

 surfaces for muscle attachment, which clearly gave evidence of the size and 

 power of each muscle. The result is a rather doglike animal and gives one an 

 entirely different conception of the appearance and character of these animals 

 than that conveyed by Leidy's phrase, "ruminating hogs." 



Slides of this mount were shown, as well as those of six other mounts of 

 different genera and species in different museums. It appears to the writer 

 that in the majority of the mounts the attitude seems a little too piglike, and 

 that the probable semi-digitigrade gait is not sufficiently emphasized. Some of 

 these mounts appear to have the head somewhat more elevated than in the 

 specimen at Yale. 



The Yale specimen is now in process of casting, in order to insure greater 

 permanency of the flesh restoration. The final result will be the equivalent of 

 a panel mount, but with the plaster reconstruction in place of the usual panel. 



NEW LIGHT ON THE PHYLOGEXY OF THE CANIDffl 

 BY W. D. MATTHEW 



A series of skulls of Cankhe from the Lower Snake Creek Upper Miocene of 

 Nebraska was obtained last summer by the American Museum Expedition. 

 These show the intermediate stages between the Canhhe of the Oligocene and 

 the Pleistocene and recent members of the family. Huxley's arrangement of 

 the family into alopecoid and thooid divisions is wholly rejected, the modern 

 Canidse being divided into two groups, one including Cyan, Icticyon, and 

 Lycaon, the other all the remaining genera. These two groups are derived 

 through two parallel series of ancestral stages from the Eocene Cynodictis. 

 The extinct group of Amphicyonine dogs is derivable from the Lower Oligo- 

 cene Duphanus through several intermediate stages, and the Middle Eocene 

 genus, Miacis, is probably the common ancestor of the family. The various 

 stages are represented by a series of skulls from the different Tertiary 

 horizons. 



TOOTH OF ALMOST HUMAN TYPE FROM THE LOWER PLIOCENE SNAKE 

 CREEK BEDS OF WESTERN NEBRASKA 



BY HAROLD J. COOK 



Read by Dr. W. J. Sinclair. 



The only example of the Simocyonid group of Canidse in North Amer- 

 ica formed the subject of the next paper. 



ARJEOCYON, A PROBABLE OLD WORLD MIGRANT 

 BY MALCOLM RUTHERFORD THORPE 



(Abstract) 



In the American Journal of Science for June, 1921, I described the lower 

 jaw of a carnivore collected in the Rattlesnake formation of Oregon in 1874 



