R. 8. Lull— Fauna of the Dallas Sand Pits. 163 



this specimen must be referred provisionally to Leidy's 

 species, and as it gives additional characters to those 

 furnished by the original type, may be considered the 

 plesiotype thereof. 



Odocoileus sp. 



Two stream-transported specimens. Cat. No. 1.62, S. 

 M. U., are in the collection. One is a single spike-like 

 antler which had apparently been shed by its owner, and 

 the other the distal end of a left humerus. They pertain 

 to a deer somewhat smaller than the black-tailed deer of 

 to-day, the antler of course being that shed by a yearling 

 buck. It is complete except for the tip, and shows no 

 sign of branching. The humerus is essentially indistin- 

 guishable from that of Odocoileus except for proportions 

 and size. 



Measurements. 



Odocoileus 



No. 1.62 



S. M. U. 



mm. 



Antler : 



Length, estimated 90 



Maximum diameter over burr. 17.7 

 Humerus : 



Width of distal end 30 



Ant.-post. diameter of distal 

 end 31 



Average ratio 



Black-tailed deer 

 No. 01413, 

 Y. P. M. 

 Eatio mm. 



0.81 



0.89 

 0.85 



37 

 35 



Tetrameryx shuleri, gen. et sp. no v. 



(Figs. 2, 3.) 

 Holotype, Cat. No, 1.50, Southern Methodist Universitj. Pleistocene, 

 Lagow sand pit, Dallas, Texas. 



Fig. 2. — Tetrameryx shuleri, gen. et sp. nov. Holotype Cat No. 1.50, 

 S. M. U. Upper dentition. Nat. size. 



