Orr, 1940:182)
farther than 42 feet from cover. In the thirties, when a gladiolus
farmer from the chaparral belt of Santa Clara County, California,
visited the University of California seeking advice on how to prevent
damage by "cottontails" to his gladioli plantings, we asked the farmer
if brush rabbits or cottontails were responsible and suggested to the
farmer, who was unable to distinguish between the two, that an animal be
killed and submitted for identification. When this was done, the brush
rabbit (_Sylvilagus bachmani_) was found to be responsible for the
damage. Robert T. Orr's recommendation that the chaparral (brush) be cut
back 45 feet from the gladioli plantings was reluctantly followed and
proved to be effective. A letter from a Santa Clara County agricultural
official a couple of years later expressed thanks for the recommendation
made by Orr, and estimated that adoption of his recommendations saved
farmers of that one county $40,000 annually. This incident illustrates
how detailed knowledge of the life history of a given kind of animal and
control of its environment, rather than direct "control" of the animal,
is sometimes of value to man.

The genus _Sylvilagus_ is restricted to the New World; the two species
_Sylvilagus brasiliensis_ and _S. floridanus_ are the only two which
occur in South America and they occur also in North America.

Subgenus BRACHYLAGUS Miller--Pigmy Rabbit

1900. _Brachylagus_ Miller, Proc. Biol. Soc. Washington, 13:157,
June 13. Type, _Lepus idahoensis_ Merriam. For characters see
subgenus _Sylvilagus_.

Sylvilagus idahoensis (Merriam)

Pigmy Rabbit

1891. _Lepus idahoensis_ Merriam, N. Amer. Fauna, 5:76, July 30,
type from head of Pahsimeroi Valley, near Goldburg, Custer County,
Idaho (Davis, Recent Mammals of Idaho, p. 363, April 9, 1939).

1930. _Sylvilagus idahoensis_, Grinnell, Dixon and Linsdale, Univ.
California Publ. Zool., 35:553, October 10.

_Marginal records._--In southeastern Washington: Ritzville (Taylor
and Shaw, 1929:29); Lind (243344 USBS); Warden (Taylor and Shaw,
1929:29). In remainder of range: Montana: Bannack (Davis, 1937:27).
Idaho: Trail Creek near Pocatello (Davis, 1939:366). Utah: 3 mi. NE
Clarkson (Durrant, MS); W side Utah Lake (_ibid._); 20 mi. W Parowan
(_ibid._); 10 mi. SW Cedar City (_ibid._). Nevada: 8-1/2 mi. NE Sharp
(Hall, 1946:618); Fallon (Schantz, 1947:187). C