r 



Douglass: Dromomeryx. 463 



dont with a tendency to become hypsodont. There are quite promi- 

 nent pillars on the anterior outer portions of all the outer crescents 

 of the upper cheek teeth. The lower molars have median outer pillars 

 on the teeth and " Pa/ceomi'/yx-Mds'' on the anterior outer crescents. 

 The neck and limbs are long, but heavier than those of Odocoileiis and 

 Antilocapra. There were at least vestiges of the lower portions of the 

 lateral metapodials. The humerus is proportionally larger than in 

 Antilocapra. The radius and ulna were separate ; but the trapezoid 

 and magnum, the navicular and cuboid were united. The distal heels 

 of the metapodials are high, the ungual phalanges high and narrow. 



Comparison of Dromomeryx tvitli Pa/csomeryx. — As previously 

 stated, it is difficult to make reliable comparison with the type of 

 Palceomeryx. From von Meyer's figures I inferred that the teeth of 

 the European genus were lower in proportion to the length and width, 

 the valleys between the crescents shallower, and the outer walls of the 

 teeth more convex vertically. The mandible in von Meyer's figure is 

 deeper posteriorly and narrows more rapidly anteriorly. 



There are now in the Carnegie Museum, several specimens from 

 Sansan, France, and Steinheim, Germany, which have been referred to 

 the genus Paheomeryx by European paleontologists. Three specimens 

 referred to Palceomeryx bojani, the type species, have recently been 

 acquired by the Museum. Whether these specimens are referable to 

 the species P. bojani, or not, I see no reason to doubt that they belong 

 to the genus Palceomeryx. 



No. 2263A (Carn. Mus. Cat. Vert. Foss. ) is a portion of a man- 

 dible with the last molar tooth complete (Plate LXII, Figs. 7 and 8). 

 This tooth, like all the teeth of Palceomeryx which I have seen from 

 Europe, strikes one at once as belonging to a quite different animal from 

 those of which remains have been found in America. The tooth is 

 low, heavy, and broad, the outer and inner crescents are thick trans- 

 versely, the outer and inner surfaces of the tooth are convex, the 

 valleys between the crescents are shallow, the heel is sub-conical in 

 form, and its outer element is represented by a small, short, antero- 

 posterior ridge resembling a cingulum. There is a quite large internal 

 median conule and the enamel of the tooth is coarsely wrinkled. The 

 last lower molar of Dromomeryx borealis is much higher and narrower 

 in proportion to the length, the outer and inner walls are less convex 

 — more nearly perpendicular, the valleys are deeper, the heel propor- 

 tionally longer and composed of an outer and an inner crescent. 



