68 Loomis — Camels of the Harrison Beds. 



region, all from the Upper Harrison beds. One of the two 

 accompanying specimens consists of the major portion of the 

 skull and some limb bones, but the individual is so young as 

 to still he using the milk dentition although molars 1 and 2 

 are up in the jaw. 



This species is smaller than the preceding one, in fact is 

 the smallest Oxydactylus yet described. Its snout is moder- 

 ately long and the species is easily distinguished by the great 

 size of upper incisor 3, which is nearly twice the'size of the 

 reduced canine. The first premolar is also a large, strong 

 tooth, and less reduced than in other species. The lower jaw 

 is stocky, the canine being much enlarged. The first premolar 

 stands considerably nearer to the canine than to the second 

 premolar. The skull of the young individual shows wide 

 projecting arches over the orbits and a rather wide but short 

 brain case. The limb material is only complete enough to 

 show that the form had long limbs typical of the genus. 



Oxydactylus campestris H. J. Cook 

 Arner. Naturalist, xliii, p. 188, 1909. 



This species occurs in the Lower Harrison beds, is interme- 

 diate in size between 0. hrachyodontus and O. lulli, and 

 clearly distinguished' by the very short snout, and by the large 

 size of upper incisor 3, which is larger than the canine. The 

 short snout would indicate a less advanced type than those in 

 the Upper Harrison beds. 



Protomeryx leonardi sp. nov. 



The type of this species is number 2001 in the Amherst 

 College Museum, and was found in the Upper Harrison beds 

 ,on Muddy Greek, about three miles below the "Spanish 

 Diggings" spring, by Mr. E. N. Leonard. Part of the skull 

 of a very young individual was also found in the same beds 

 some five miles further up the Muddy Creek and is 10326 of 

 the Yale Museum. Heretofore this genus has not been 

 reported from the Harrison beds. This species is characterized 

 by the slender proportions of the lower jaw, which is all that 

 was found of the adult animal. The full set of teeth is present 

 in the lower jaw, the teeth being rather high crowned, but not 

 enough so to be designated hypsodont. In the lower jaw there 

 is a short diastema behind the third incisor (as shown by the 

 young jaw). The canine is a slender, compressed tooth which 

 rises to an unusual height and projects somewhat forward. 

 The first premolar is reduced, being but 4r| mm wide, the dias- 

 tema between it and the canine being 15 mm , while the interval 

 behind it, i. e. between premolar 1 and premolar 2, is very 



