50 J. A. Alleyi— Remains of an Extinct Species of Deer. 



lacking the distal end, and a right metatarsal, which has also 

 lost the distal termination, indicate a species of about the same 

 proportions as Cervus Virginianus, but much larger, considera- 

 bly exceeding- in size Cervus macrotis. The measurements 

 given below indicate the fossil species to have been at least 

 one-seventh larger than C. macrotis, and apparently more than 

 one-fifth larger than C. Virginianus. A comparison of the 

 bones themselves give a stronger impression of the greatly 

 larger size of the fossil species than do the tabulated measure- 

 ments. In respect to form, the humeri of the three species do 

 not materially differ, although the condyles in G. macrotis have 

 a rather greater relative breadth than in either of the other 

 species. The radius also differs but little in form in the three, 

 bat in the fossil species the ulna (it has now been broken away 

 and is lost) was solidly anchylosed with the radius nearly 

 throughout its length, being free only near its distal extremity, 

 whereas in C. macrotis it is anchylosed for only its middle por- 

 tion, being not only free proximally as well as distally, but for 

 quite a space near the proximal end does not even touch the 

 radius, there being an interval of fully two millimeters between 

 them. In 0. Virginianus the radius and ulna are nearly as fullv 

 anchylosed as in the fossil species. The metatarsal bone is 

 similar in form to that of C. macrotis, except that it is relatively 

 more compressed laterally in its distal portion, and seems to 

 have been (the distal end is lacking) relatively narrower at its 

 lower articulation. In this respect it corresponds more nearly 

 with the distal portion of the metatarsus of G. Virginianus, 

 which is much rounder and relatively more slender than that of 

 G. macrotis. The metatarsal of the fossil species differs from 

 that of G. Virginianus, however, in having the groo^'e of the 

 posterior surface continued much further distally than in that 

 species. In the following table of comparative measurements 

 the specimens taken are middle-aged males, the Cervus macrotis 

 (No. 1781 of the Mus. Comp. Zool.), being from the Medicine 

 Bow Mountains, Wyoming Territory, and the G. Virginianus 

 (No. 1733 of the Mus. Comp. Zool.) from Maine. 

 Comparative Measurements of Bones of Cervus Whitneyi, Cervus 



.Whit- 



metus. — Total length, 



Length from most prox. part of 

 head to most dist. part of inner 



condyle, 



Breadth of condylar surface, 



A ntero posterior breadth of inner 



condyle, 



Least circumference of shaft, 



