are
_Spilogale gracilis microrhina_. The localities from which the
specimens came are, respectively, the northeasternmost, easternmost
and southernmost occurrences so far listed for the subspecies.

~Conepatus mesoleucus mearnsi~ Merriam

Examination of the holotypes of _Conepatus filipensis_ Merriam,
_Conepatus pediculus_ Merriam, _Conepatus sonoriensis_ Merriam, and
_Conepatus mesoleucus mearnsi_ Merriam, and other specimens of the two
kinds last named, convinces us that all are the same species and that
the names should stand as follows: _Conepatus mesoleucus filipensis_
Merriam (type locality, Cerro San Felipe, Oaxaca); _Conepatus
mesoleucus pediculus_ Merriam (Sierra Guadalupe, Coahuila); and
_Conepatus mesoleucus sonoriensis_ Merriam (Camoa, Rio Mayo, Sonora).

One method of designating the ages of individuals in _Conepatus_ is
to recognize four categories from younger to older, as follows: 1)
juvenile--retaining one or more deciduous teeth; 2) young--sutures
open and clearly to be seen between bones of the facial part of the
skull; 3) subadult--skull of adult form, but lacking sagittal and
lambdoidal crests and retaining faint traces of sutures between facial
bones; and 4) adult--sutures obliterated, lambdoidal ridge high and
temporal ridges (of females) or sagittal crest (of males) prominent.

On this basis of designating age, the holotype of _C. pediculus_ is
young and nearer the juvenal than the subadult stage. Its small size
is partly the result of its youth. Other than its small size we find
no characters to distinguish it from _C. m. mearnsi_. Unfortunately no
young male of _C. m. mearnsi_ of the same age as the holotype of _C.
pediculus_ is available. Also, from the general area of the Sierra
Guadalupe, Coahuila, only the one specimen of _Conepatus mesoleucus_
(the holotype of _C. m. pediculus_) is known. Consequently, we can not
yet prove that some young males of _C. m. mearnsi_ are as small as the
holotype of _C. pediculus_. Because of this lack of proof we
tentatively recognize the subspecies _Conepatus mesoleucus pediculus_
instead of placing the name _Conepatus pediculus_ in the synonomy of
_Conepatus mesoleucus mearnsi_.

The holotype of _C. sonoriensis_ is a young female, older than the
holotype of _C. pediculus_, and approximately midway between the
juvenal and subadult stages.

The holotype of _C. filipensis_ is an adult male.

We suppose that _C. mesoleucus mesoleucus_ Lichtenstein and