102 Merriam — Six JVetc S/LioJits. 



white except at base underneath, which is black.* Skull relativelj- 

 hig-h; anterior nares largo and obliquely truncate (broadly open as seen 

 i'rom above); ascending arm of premaxilke reduced to a slender oblique 

 splint; nasals and maxilte ending posteriorly on essentially same plane; 

 anterior part of nasals (in profile) essentially in fronto-nasal plane (not 

 upturned or pugged); postorbital constriction slight; antorbital foramen 

 single throughout. 

 The new forms are: 



Conepatus leuconotus texensis subsp. nov. 



Tyjie Incdlity. — Brownsville, Lower Rio Grande, Texas. Type No. 

 ffili ^'icl-^ U. S. National Museum, l^iological Survey Collection. July 

 20, 1892. F. B. Armstrong. Original No. 70. 



Range. — Coast strip of Texas from Rockport, Aransas County, to 

 movith of Rio Grande; may extend southward into Tamaulipas. 



C/iaracfem. — Similar to leiicoiiotitu but somewhat larger, with white 

 dorsal area more restricted, usually contracting on rump to a narrow 

 stripe and in some specimens disappearing altogether, leaving the rump 

 largely or wholly black. Usually a narrow white line connects the white 

 dorsal area with the white of the tail. Black of underside of tail more 

 extensive than in leuconotus, usually spreading over sides of base, and 

 reaching out on underside at least one-thii"d and often one-half the 

 distance from base to tip [in leuconotus ending opposite toes of out- 

 stretched hind feetj. 



Measurements. — Average of 4 males from type locality: total length 

 825; tail vertebrse 3C5; hind foot 8G. Average of 4 females from same 

 place: total length 708; tail vertebrie 292; hind foot 70. Largest skull 

 of c? : basal length 77; zygomatic breadth 55.5; palatal length 35; upper 

 molar on outer edge 10. Largest skull of 9: basal length GO: zygomatic 

 breadth 48; palatal length 31; upjior molar on outer edge 9.5. 



Conepatus sonoriensis sp. nov. 



T ij'pe locality . — Camoa, liio Mayo, Sonora, Mexico. Type No. 95,914, 

 9 yg. ad., U. S. National Museum, Biological Surve}' Collection. 

 October 29, 1898. E.A.Goldman. Original No. 13,213. 



Range. — Northwestern IMexico from Valparaiso Mountains, Zacatecas, 

 northwesterly over Sinaloa (specimens from Santa Cruz de Alaya) and 

 into Sonora for an unknown distance (specimens from Camoa, Rio Mayo). 



Characters. — Size large (hind foot in $ about 85; in 9 about 80); 



*Sometimes a few black hairs are inconspicuously mixed in the white 

 of the tail. In some specimens of C. leuconotus te.vcnsis the white dorsal 

 band fails on the ruinp; with tills exception the color-pattern as above 

 described is constant throughout the group. 



