I9IS-] 



LOWER PLIOCENE SNAKE CREEK BEDS. 



83 



Edentate ( PMegalonychid). 



A single imperfect claw, " definitely recognizable as of Gravi- 

 grade relationship " and comparable " with some of the smaller 

 Megalon3'chid9e " is reported by Matthew and Cook from the Snake 

 Creek beds. Further confirmation of the presence of edentates is 

 found in a navicular bone (Fig. 7) unquestionably of a Gravigrade, 

 about two thirds the size of the navicular of Megalonyx jeffersoni 

 and of much the same general type, obtained by the Princeton ex- 

 pedition at collecting locality lOOoC. 



Fig. 7. Navicular bone of gravigrade edentate, upper and lower views, two 

 thirds natural size. No. 12079. 



Mastodons. 

 Mastodons of two types are indicated in the Princeton Snake 

 Creek collection by several complete molars, most of which seem 



Fig. 8. Gomphothcriuni sp., right last lower molar, one half natural size. 

 No. 12064 Princeton University Geological Museum, collecting locality 1000 A. 



