When Goldman (Jour. Mamm., 3:40, February 10, 1921) named _C. m. venaticus_ from Arizona he did not mention material which Merriam (Proc. Biol. Soc. Washington, 15:163, August 6, 1902) had recorded from Ft. Verde, Arizona, under the name _Conepatus mesoleucus mearnsi_. This material seems to be specimens in the American Museum of Natural History of which the two oldest specimens are as follows: No. 2486/1921, male, adult, from Box Cañon, 20 mi. S Ft. Verde; No. 2487/1922, female, subadult, from Verde River, Arizona. Pertinent measurements of these specimens are, respectively, as follows: condylobasal length, 72.4, 68.8; zygomatic breadth, 50.0, 44.2; width of braincase at constriction behind zygomata, 36.4, 33.8; mastoidal breadth, 44.3, 38.4. Comparison of these measurements with those given for _C. m. venaticus_ (Goldman, _loc. cit._) reveals that the specimens concerned agree in narrowness of skull with _C. m. venaticus_ (_C. m. mearnsi_ is relatively wider) and it is on this basis that we refer the specimens to _Conepatus mesoleucus venaticus_. ~Urocyon cinereoargenteus costaricensis~ Goodwin J. A. Allen (Bull. Amer. Mus. Nat. Hist., 20:48, February 29, 1904) listed two specimens of gray fox from Pozo Azul, Costa Rica, as _Urocyon guatemalae_. Goodwin, in his "Mammals of Costa Rica" (Bull. Amer. Mus. Nat. Hist., 87(5):271-474, December 31, 1946) did not mention any material from Pozo Azul. We have examined the skull of the adult female (No. 19208 AMNH) taken on July 17, 1902, at Pozo Zul [sic], by M. A. Carriker and find it to be indistinguishable from other specimens of _Urocyon cinereoargenteus costaricensis_ to which subspecies we therefore refer the specimen. ~Canis lupus griseoalbus~ Baird