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The Mammalian Remains of the Donaldson Cave. 



Walter L. IIaiin. 



While occupying tlie Donaldson Farm Fellowsliip in Zoology in Indiana 

 University, the %Yriter has had occasion to make frequent trips into the 

 Donaldson Cave, situated about three miles southeast of Mitchell, Indiana. 

 On one of these trips bones of small mammals were noticed and diligent 

 collecting on that and subsequent occasions has resulted in the finding of 

 identifiable remains of 244 individuals, representing eleven species. The 

 occurrence and relative abundance of some of these species is of consider- 

 able interest and this occasion is fallen to place all on record. 



The list follows 



1. Didelphis virfiiniaua Kerr. Opossum. 



A portion of one slvull found on a gravel deposit in a side passage 

 leading off from the "big room" of the cave. 



2. Odocoilciis virrilnianus (Boddaert). Virginia deer. 



A vertebra found not far from the preceding specimen has been 

 identified for me by Mr. J. M. Gidley, Vertebrate Paleontologist 

 of the National Museum, as the fourth cervical of this species. 

 It was doubtless carried in, either by a flood or by some car- 

 niverous animal, in the days when deer were plentiful in In- 

 diana, and since that time has lain undisturbed in the dark- 

 ness of the cave. 



3. SylvUacias floridanvs (Allen). Rabbit. 



Remains of three individiials found. 



4. Perowiisciis leucopiis v'Rafinesque). White-footed mouse. 



Mandibles of four individuals found. 



5. Microtus pinetormn (Le Coute). I'ine mouse. 



Four of this species also. 

 G. Blarlna hrevicanda (Say). Large shrew. 

 One skull. 



