Jarkson Notes on the Mammals of Southwestern Missouri. 73 

 Reithrodontomys intermedius Allen. 



HARVEST MOUSE. 



The geographical range of this harvest mouse has generally been given 

 as, " Southern Texas from Corpus Christ! southward; Rio Grande Valley 

 to month of Pecos, and east to Kerr, Bexar and Bee counties. South into 

 Mexico. Inhabits Lower Sonoran Zone." 



In view of the fact that this mouse had never been recorded from the 

 United States outside of Texas, I was somewhat surprised to find that I had 

 four fairly typical specimens from Carthage, Jasper County, Missouri. I am 

 indebted to Mr. W. II. Osgood, of the United States Biological Survey, 

 for identifying them. These specimens were all taken during the autumn 

 of 1904 and measured as follows: Adult male, total length, 154.5 mm. ; 

 tail vertebrae, 80 mm. ; hind foot, 21.2 mm. Adult female (average of 

 two), total length, 167 mm.; tail vertebrae, 93.2 mm.; hind foot, 20.8 

 mm. Immature female, total length, 132 mm. ; tail vertebrae, 76.7 mm. ; 

 hind foot, 21.2. 



Reithradontomys intermedium is found in grassy and weedy orchards, or 

 upon the open prairie, especially where there is a scattering grow r th of 

 scrub trees. A favorite habitat is a grassy patch where an old wheat stack 

 has once stood. All the specimens taken were trapped in holes under 

 stumps and at no time were nests observed in the open in trees or in 

 bushes. 



Microtus ochrogaster (Wagner). 



PRAIRIE VOLE. 



The prairie r meadow vole is undoubtedly the most abundant mammal in 

 southwestern Missouri. It is found in every grassy tract of land and is 

 evidently at home both near the streams and on the prairies. Specimens 

 taken, with one exception, do not differ essentially from those taken in 

 AVisconsin. A male taken March 4, 1905, is much grayer than typical 

 specimens and approaches haydeni in color but its cranial characteristics 

 are in keeping with ochrogaster. Four males average: Total length , 147.6 

 mm.; tail vertebrae, 30.7mm.; hind foot, 20.2mm. Three females av 

 erage: Total length, 145.6mm.; tail vertebrae, 33.7mm. ; hind foot, 21.5 

 mm. 



Fiber zibethicus (Linnaeus). 

 MU8KKAT. 



Muskrats are not uncommon along the streams, where they live in holes 

 in the banks. Though the mercury sometimes reaches the zero mark, I 

 have never known the muskrats to build nests in the region. 



Lepus texianus melanotis Mearns. 



JACK RABBIT. 



Lt']>nn t. iiH'Iuiiotix is not rare in the prairie regions of Jasper County. It 

 probably does not extend to the southward, for the region there is more 

 wooded and hilly. A typical specimen of Lepus t. melanotis was taken 

 November 24, 1904, on the eastern border of Jasper County. Jack rab 

 bits are said by the natives here not to occur east of White Oak Creek. 

 This creek lies one-half mile east of the locality from which this specimen 

 was taken , and is close to Lawrence County. The statement is undoubtedly 



