474 
Thomomys. 
a. — pervagus, Merriam, 1, c., 1901, p. 110. 
b. — perpes, Merriam, 1. e., 1901, p. 111. 
c. — lachuguilla, Bailey, Proc. Biol. Soc. 
Wash., 1902, p. 120. 
4790. latirostris. Merriam, 1. c., 1901, p. 107. 
4791. perpallidus, Merriam — ( 3484 )-, Elliot, 
1. c,, 1901, p. 229. 
4792. cabezonae, Merriam, 1. c., 1901, p. 110. 
4793. cervinus, Allen — ( 3487 ); Elliot, 1. c., 
1901, p. 230. 
4794. sinaloae, Merriam, 1. c., 1901, p. 108. 
4795. altivalis. Rlioads — ( 3485 ); Elliot, 1. c., 
1901, p. 230. 
4796. fossor, Allen — ( 3488 ); Elliot, 1. c., 1901, 
p. 230. 
4797. toltecus, Allen — ( 3489 ). 
4798. perditus, Merriam. 1. e., 1901, p. 108. 
4799. goldmanni, Merriam, 1. e., 1901, p. 108. 
4800. baileyi. Merriam, 1. c., 1901, p. 109. 
4801. nelsoni, Merriam, 1. c., 1901, p. 109. 
4802. orizabae, Merriam — ( 3490 ). 
4803. atrovarius, Allen — ( 3490 B ). 
4804. peregrinus. Merriam — ( 3491 ). 
Novo-Mexico, 
(Espanola). 
California 
(Owens Valley, 
Lone Pine). 
Texas, ad pedes 
M tium aridarum 
(EI Paso). 
Arizona (Painted 
Desert, Little Colorado 
Desert). 
California Merid., 
(Deserto Colorado), 
Arizona (Painted 
Desert). 
California (San 
Gorgonio Pass, 
Cabezon). 
Arizona Merid., 
(Phoenix). 
Mexico, Sinaloa, 
(Altata). 
California Merid.-Or., 
(M tes San Bernardiuo). 
Colorado, La Piata 
Co., (Florida), Beg. 
San Juan super. 
Mexico, Cliihuahua 
Sept. (Juarez). 
Mexico, Nuevo Leou, 
(Lampazos). 
Mexico, Durango, 
(Mapimi). 
Texas (Sierra Blanca). 
Mexico, Chihuahua, 
(Parral). 
Mexico Merid., 
(M 3 Orizaba). 
Mexico, Sinaloa, 
(Tatemales). 
Mexico Centrali et 
Merid., (Salazar). 
