Cope.] 208 [April 4, 



Measurements. 



M. 



Diameter condyles of humerus (antero-posterior) 032 



" head radius (transverse) 0282 



" " " (vertical) 0162 



" shaft radius 016 



" cotylus of ulna (long) 030 



Depth ulna at coronoid process 034 



Length carpus and digit 2 without unguis 112 



' ' two phalanges do 037 



" metacarpal do 061 



Length metacarpal No. 3 074 



No.4....i 070 



" " No. 5 053 



" scaphoid transversely 023 



" cuneiform " 027 



" pisiform 027 



Width " ,distally 016 



Length unciform transversely 020 



Width " antero-posteriorly 013 



" trapezoid " 01rj5 



" trapezium " 0114 



Length " vertically * 016 



Width scaphoid antero-posteriorly 015 



" navicular " 0155 



Length " transversely 0255 



" ungueal phalange 016 



Width " " - 010 



Diameter centrum of lumbar vertebra 029 



» caudal " 009 



The dental series is uninterrupted from the canine if, as I believe, 

 there is an alveolus for a simple premolar behind it. This I overlooked 

 when first describing the species and hence gave the molars as 6 instead 

 of 7. The superior canine is smooth, but the inferior one of the left 

 side has a longitudinal groove on its extero-inferior face. 



Restoration. This carnivore had a large head, with a long, rather nar- 

 row, and truncate muzzle. The limbs were relatively smaller, not ex- 

 ceeding those of the black bear ( Ursus americanus), in length and thick- 

 ness. The tail was long and slender as in the cats, while the claws were 

 broad and flat as in the beaver. 



History, Locality, etc. The teeth are very much worn, indicating the 

 hard food on which the animal had subsisted, as well as its mature age. 



I originally described this species as resembling the remarkable genus 

 Anchippodus* of Leidy, and subsequently (on the Short-footed Ungu- 

 lata of Wyoming, etc., p. 5) have alluded to the large rodent incisor-like 



* See in Hayden's Geol. Surv. Montana, 1871 (as Trogosus). 



