- 
SCIURIDM—SPERMOPHILUS. 819 
TABLE LXXXI.—List of specimens examined of TAMIAS LATERALIS—Continued. 
=) gy - 
i ae es A 
q & .| 2 x) 
a 2 z g $, Localit When From whom re- Collected b a 
e Sa| a |a y- collected. ceived. spent ae 4 
= ax| gis 2 
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= 5 oe =I 3S =] 
Sa) 8) & vi ee} 
a@ioFr = oS GI 
oO oO °o n A 
PATA aoe 631 |....| Park County, Colo ........ July 8,1871| Rocky Mountain Ex-| Allen, Bennett, and | Skin, 
pedition. Bliss. 
ore Ch eee SS8ileeeelee news GO oes ce oosteece tec. July. 20) 1871 | <.dO --<<..ccccecens Boos icnesenecorecocd fe do. 
42749 | ...--- O60) | baad aeeeaGOle steer nes sate nae Ss ULyAROFLSTL i -s-c dO secesdaeccceee Cees sscascemeeeee 1a do. 
OT EL aac LO eed looser GD isoeedonsos sce sssoase Ci ee eri Gee yo seencocedl pose Gl paaceeccosseeee| er do. 
SSL bas 1008 |....| El Paso County, Colo .......] July 29, 1871|....do ...............|-.-. pO ree 1 do. 
SESS | ans Poe eret eeee Bear Creek, Oreg ...-------. Aug. 21,1876 | Capt. Chas. Bendire.| Capt. Chas, Bendire.|..do. 
* Im Museum of Comparative Zoblogy, Cambridge, Mass. 
Genus SPERMOPHILUS F. Cuv. 
Spermophilus F. Cuvier, Mém. du Mus. ix, 1822, 293; Dents des Mamm. 1825, 161, 255, pl. lv (type “Mus 
citillus, Linn.”). 
Spermophila RICHARDSON, Parry’s Second Voyage, App. 1825, 313 (= Spermophilus F. Cuv.). 
Spermatophilus WAGLER, Syst. Avium, 1830, 22 (accredited to F'. Cuvier). 
Citillus LICHTENSTEIN, Darst. neuer oder wenig bekannt. Siiuget. 1827-34 [18307], pl. xxxi, fig. 2 (not 
paged). 
Colobotis BRANDT, Bull. Classe Physico-math. de l’Acad. Imp. des Sci. de St. Pétersb. ii, 1844, 360. 
Otocolobus BRANDT, Bull. Classe Physico-math. de Acad. Imp. des Sci. de St. Pétersb. ii, 1844, 382 (= 
Colobotis). 
Olospermophilus BRANDT, Bull. Classe Physico-math. de l’Acad. Imp. des Sci. de St. Pétersb. ii, 1844, 379. 
Generic cHars,—Skull very variable in form, being either narrow and 
elongate or short and broad, with the dorsal outline moderately or strongly 
convex, and the zygomatic arches greatly or only moderately expanded ;_ post- 
orbital processes generally triangular, strong, and directed downward; zygo- 
matic processes of the maxillary greatly depressed and expanded; plane of 
the malar turned outward, sometimes anteriorly nearly horizontally flattened; 
zygomatic arches spreading; position of the anteorbital foramina more for- 
ward than in Tamias, subtriangular, with a strongly developed tubercle at 
the outer lower corner; upper premolars always two, the first variable in 
size, generally much larger than in Sciurus or Tamias, and sometimes nearly 
as large as in Cynomys; grinding-teeth variable in strength and size; cheek- 
pouches well developed; body slender or thick-set ; tail long, moderate, or 
short, cylindrical or flattened; ears large, of medium size, or rudimentary, 
never tufted; nail of pollex generally undeveloped ; character of the pelage 
-and pattern of coloration variable. 
As previously stated, the genus Spermophilus, as commonly recognized, 
