Fes., 1912. MamMAts OF ILLINOIS AND WISCONSIN—CoRy. 313 
Genus CANIS Linneus. 
Canis Linneus, Syst. Nat., X ed., I, 1758, p. 38. Type Canis 
familiaris Linneus. 
Temporal crests joining and extending in a single parietal ridge or 
sagittal crest;* frontal sinus present; upper incisors lobed or notched; 
nasals extending to or back of maxillaries; jaws elongated; nose elongated 
and tapering; postorbital process of frontal bone rounded, with end 
curving downward; pupil of eye ee 
Dental formula: I. = = Pa » M.—-=42. 
ae 4-4 33 
Canis nubilus Say. 
Gray Wor. TIMBER WOLF. 
Canis nubilus Say, Long’s Exped. Rocky Mts., I, 1823, p. 169. 
Canis occidentalis KENNIcOTT, Trans. Il. State Agr. Soc., I, 1853-54 (1855), p. 578 
(Cook Co., Illinois). Tuomas, Trans. Ill. State Agr. Soc., IV, 1859-60 (1861), 
p. 654 (Illinois). Banos, Amer. Nat., XXXII, 1898, p. 505. Apams, Rept. 
State Board Geol. Surv. Mich., 1905 (1906), p. 130 (Michigan). Haun, Ann. 
Rept. Dept. Geol. & Nat. Resources Ind., 1908 (1909), p. 557 (Indiana). SETON, 
Life Histories of Northern Animals, II, 1909, p. 749. Woop, Bull. Ill. State 
Lab. Nat. Hist., VIII, 1910, p. 570 (Illinois). 
Lupus occidentalis LAPHAM, Trans. Wis. State Agr. Soc., II, 1852 (1853), p. 339 
(Wisconsin). 
Canis occidentalis var. griseo-albus MiLEs, Rept. Geol. Surv. Mich., I, 1860 (1861), 
p. 220 (Michigan). 
Canis lupus STRONG, Geol. Wis., Surv. 1873-79, I, 1883, p. 436 (Wisconsin). EveEr- 
MANN & ButTLer, Proc. Ind. Acad. Sci., 1893 (1894), p. 135 (Indiana). 
Canis lupus nubilus RHoaDS, Proc. Acad. Nat. Sci. Phila., 1896 (1897), p. 200 (Ten- 
nessee). 
Canis nubilis MCATEE, Proc. Biol. Soc. Wash., XX, 1907, p. 6 (Indiana). 
Canis griseus JACKSON, Bull. Wis. Nat. Hist. Soc., VI, 1908, p. 27 (Wisconsin). 
Type locality — Vicinity of Council Bluffs, Iowa. 
Distribution — Not definitely determined. 
Description — Adult: Size large; general color variable; the majority 
of specimens grayish or brownish gray or brownish white, with 
the middle portion of back to base of tail largely black; much pale 
rufous brown on legs and about the head and ears; terminal portion 
of tail tinged with pale rufous, the hairs at the tip mixed black and 
white; diameter of upper canine teeth at base (in adult) .50 inch or 
more; nose pad (in adult) more than 1.25 inch wide. 
Measurements — Total length, about 56.50 to 63 in. (1400 to 1600 mm.); 
tail vertebra, 15 to 16 in. (380 to 416 mm.); hind foot, about 10 in. 
(254mm.). (Specimens from Michigan.) 
* For illustration see p. 298. 
