. The horse and its relatives . rence to the subject is necessary in this place. It remains, however, to add that a small speciesof hipparion of slender build from the Pliocenestrata of the Siwalik Hills of Northern India,described in the first half of the nineteenth centuryby Messrs. Cautley and Falconer as Hippotheriuniantilopimim [Hippot/ieriiifn being an alternativename for Hipparion) is now believed to have lostthe lateral toes, and has accordingly been referredto a genus by itself, under the name o{ addition to the typical Hippodactylus antilopinus,there is a second Siwal
. The horse and its relatives . rence to the subject is necessary in this place. It remains, however, to add that a small speciesof hipparion of slender build from the Pliocenestrata of the Siwalik Hills of Northern India,described in the first half of the nineteenth centuryby Messrs. Cautley and Falconer as Hippotheriuniantilopimim [Hippot/ieriiifn being an alternativename for Hipparion) is now believed to have lostthe lateral toes, and has accordingly been referredto a genus by itself, under the name o{ addition to the typical Hippodactylus antilopinus,there is a second Siwalik species, which has beennamed H. chishohni,^ It may be added that in Hippariofi, as wellas in Alerychippus, the terminal bone of the maintoe has a cleft in the middle of its lower frontborder; this cleft occurring in many of the earlierforerunners of the horse. All the foregoing genera may undoubtedly beincluded in the same family—Equidce—as the ^ G. Pilgrim, Rec. Geol. Surv. India, vol. xl. p. 67, 1910. PLATE XXIV Fig. I. Fig. 2
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecthorses, bookyear1912