.

1909. _Sylvilagus auduboni sanctidiegi_, Nelson, N. Amer. Fauna,
29:218, August 31.

_Marginal records._--California (Orr, 1940:122): Sespe; Reche Canyon
near Colton; San Felipe Canyon. Baja California (Nelson, 1909:220):
Nachog[:u]ero Valley; Santo Tomas, thence northerly along coast.

SYLVILAGUS AUDUBONII VALLICOLA Nelson.

1907. _Sylvilagus auduboni vallicola_ Nelson, Proc. Biol. Soc.
Washington, 20:82, July 22, type from San Emigdio Ranch, Kern
County, California.

_Marginal records_ (Orr, 1940:118, unless otherwise
noted).--California: Fresno Flat (Nelson, 1909:218); Badger
(_ibid._); 2750 ft., Onyx; Tehachapi (Nelson, 1909:218); Mt. Pinos
(Orr, 1940:119), northwesterly, seldom actually reaching coast, to
central Monterey County thence easterly to point of beginning.

SYLVILAGUS AUDUBONII WARRENI Nelson.

1907. _Sylvilagus auduboni warreni_ Nelson, Proc. Biol. Soc.
Washington, 20:83, July 22, type from Coventry, Montrose County,
Colorado.

_Marginal records._--Utah: 5250 ft., Willow Creek (Durrant, MS).
Colorado (Nelson, 1909:232): Rifle; Villa Grove; Medano Ranch. New
Mexico: Hondo Canyon (Nelson, 1909:232); Cieneguilla (_ibid._); Juan
Tafoya (Bailey, 1932:59). Arizona (Nelson, 1909:232): Holbrook;
Winslow. Utah: Canesville (_sic_) (Nelson, 1909:232); Wellington
(Durrant, MS).

=Sylvilagus aquaticus=

Swamp Rabbit

Total length, 530-540; tail, 67-71; hind foot, 105-110; length of ear
from notch (dry), 63-67. Upper parts blackish brown or reddish brown;
underparts with some white; under side of tail white; skull robust;
posterior extensions of supraorbital processes joined for their entire
length with side of braincase or, in some specimens, with a small
foramen between the braincase and the base of the posterior extension of
the supraorbital process. This big rabbit is a stronger runner than the
smaller marsh rabbit and is easily distinguished from the smaller
species by larger size and white, instead of brownish or grayish,
underside of the tail.

SYLVILAGUS AQUATICUS AQUATICUS (Bachman).

1837. _Lepus aquaticus_ Bachman, Jour. Acad. Nat. Sci. Philadelphia,
7:319, type locality western Alabama.

1909. _Sylvilagus aquaticus_, Nelson, N. Amer. Fauna, 29:270, August
31.

1895. _Lepus aquaticus attwateri_ J. A. Allen, Bull. Amer. Mus. Nat.
Hist., 7:327, November 8,