. Catalogue of the mammals of Western Europe (Europe exclusive of Russia) in the collection of the British museum. Mammals. 318 CARNIVORA. Skull.—The skull is much smaller than that of Can!.s lupus. In form it differs slightly in the less elevated frontal region and somewhat more inflated auditory bullae. Teeth.—While agreeing with those of Canis lupus in general form and in the position of the cusps, the teeth are on the whole more trenchant in character, as shown by the general tendency toward narrowness of crown and prominence of ridges. This is particularly noticeable in the upper molars,
. Catalogue of the mammals of Western Europe (Europe exclusive of Russia) in the collection of the British museum. Mammals. 318 CARNIVORA. Skull.—The skull is much smaller than that of Can!.s lupus. In form it differs slightly in the less elevated frontal region and somewhat more inflated auditory bullae. Teeth.—While agreeing with those of Canis lupus in general form and in the position of the cusps, the teeth are on the whole more trenchant in character, as shown by the general tendency toward narrowness of crown and prominence of ridges. This is particularly noticeable in the upper molars, in which the large cusps are relatively higher, more slender, and less terete than in Canis lupus, their cutting ridges much more developed ; transverse diameter of metacone in m^ noticeably less than width of inner portion of crown ; cingulum on outer border of both upper molars wide and conspicuous in contrast with narrow cusps, Fig. 62. showing no tendency to become obsolete in Canis aureus, region between paracone and metacone. Lower ^*chee ™teeuf'^ carnassial with metaconid actually as well as Nat. size. relatively larger than in Canis lupus, and posterior heel with area equal to nearly half that of anterior portion of tooth, its cusps strongly developed. Measurements.—For cranial measurements see Table, p. 316. Specimens examined^—One from Greece (Piraeus); numerous others frora Asia Minor and India. Remarls.—The single specimen from Greece agrees sufficiently with a series of five from Khotz, near Ti'ebizond, Asia JNIinor, to make it appear vmwise, in the absence of more satisfactory material, to use one of the Balkan names. 1. Pirccus, Greece. (C. Mottaz.) Hon. N. C. Eoths- 8. 10. 2. 49-50. child (p). _ Genus ALOPEX Kaup. 1829. Alopex Kaup, uud Natiirl. Syst. Europ. Thierw., i, p. 83. 1857. Leiicocyon Gray, Proc. Zool. Soc, London, p. 512. Type species.—Canis lagopus Linna?us. Geographical distribution.—Arctic region of both Old and New Worl
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