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LITTLE HARVEST MOUSE. 
GENERAL REMARKS. 
By some mistake this animal was set down on onr plate as Mim minimus 
(Aud. and Bach.) It should have been Mus humilis {Bach.), being the 
name assigned to it by its first describer. We sent a minute descrip- 
tion of this species to the Academy of Natural Sciences in 1837, which 
was read by our friend Dr. Morton ; although informed that it was 
published in the transactions of the Society, we have not seen it in print. 
A second description was published in the transactions of the same Soci- 
ety, October, 1841. We have not ascertained that the species has been 
noticed by any other naturalist. 
In examining the teeth of this species, we have found that the tuber- 
culous summits on the molars were less distinct than in those which le- 
gitimately belong to the genus Mus, and that there are angular ridges on 
the enamel by which it approaches the genus Arvicola ; it is in fact an 
intermediate species, but in the aggregate of its characteristics perhaps 
approaches nearest to Mus, where we for the present have concluded to 
leave it. 
