Vw^v 



LEPOKlDiE— LEPU8 CALLOTI8 ET VAB. 



355 



of the plains oust of tlie Rocky Mountains. Dr. Cooper gives its western 

 limit in latitude 35° as the Colorado River. I liiivc observed it on the plains 

 of Western Nebraska and Middle Kansas; and there are specimens in the 

 collection from as far east as Austin, Texas. It does not appear to overlap 

 the range of Lepus californicus, but extends over the southern half of the 

 range oi Lepus campestris. Toward the Mexican border, especially in Texas, 

 it begins to very generally take on the distinctive features of variety callotis. 

 The habitat oi Lepus callotis \a.r. callotis extends from about the southern 

 boundary of the United States far southward into Mexico, there being speci- 

 mens in the collection from Orizaba and Tehuantepec; and De Saussure 

 mentions it as being common in the province of "Mechoacan'', in about lati- 

 tude 19.°. 



Tadlb XHTL—MeaittremeMa of Lkpus callotis. 



