North American elephants, mastodons, horse, and hollow-horned ruminants migrated, on land since submerged near Behring's.    From Wordnik.com.  [Journal of researches into the geology and natural history of the various countries visited by H.M.S. Beagle] Reference

The existence in South America of a fossil horse, of the mastodon, possibly of an elephant,74 and of a hollow-horned ruminant, discovered by MM.    From Wordnik.com.  [Journal of researches into the geology and natural history of the various countries visited by H.M.S. Beagle] Reference

When America, and especially North America, possessed its elephants, mastodons, horse, and hollow-horned ruminants, it was much more closely related in its zoological characters to the temperate parts of Europe and Asia than it now is.    From Wordnik.com.  [Journal of researches into the geology and natural history of the various countries visited by H.M.S. Beagle] Reference

North America, on the other hand, is characterised (putting on one side a few wandering species) by numerous peculiar gnawers, and by four genera (the ox, sheep, goat, and antelope) of hollow-horned ruminants, of which great division South America is not known to possess a single species.    From Wordnik.com.  [Journal of researches into the geology and natural history of the various countries visited by H.M.S. Beagle] Reference

The crimson circle before me is drained from this hollow-horned mammal.    From Wordnik.com.  [Stickyrice] Reference

These comprise the oxen, and wind up the hollow-horned ruminants as far as India is concerned.    From Wordnik.com.  [Natural History of the Mammalia of India and Ceylon] Reference

The existence in South America of a fossil horse, of the mastodon, possibly of an elephant, 4 and of a hollow-horned ruminant, discovered by MM.    From Wordnik.com.  [Chapter VII] Reference

The hollow-horned ruminants are those which bear a persistent sheath of horn on a bony core; the others bear solid antlers which are periodically shed, and grow afresh.    From Wordnik.com.  [Natural History of the Mammalia of India and Ceylon] Reference

American elephants, mastodons, horse, and hollow-horned ruminants migrated, on land since submerged near Behring's Straits, from Siberia into North America, and thence, on land since submerged in the West.    From Wordnik.com.  [The Andes and the Amazon Across the Continent of South America] Reference

Unlike all other hollow-horned animals, it sheds its horns annually, exactly as the deer shed their solid antlers; but the shedding process in the prong-horn occupies but a very few days, so short a time, indeed, that many hunters stoutly deny that it takes place at all.    From Wordnik.com.  [VI. A Trip on the Prairie] Reference

North America, on the other hand, is characterized (putting on one side a few wandering species) by numerous peculiar gnawers, and by four genera (the ox, sheep, goat, and antelope) of hollow-horned ruminants, of which great division South America is not known to possess a single species.    From Wordnik.com.  [Chapter VII] Reference

The hollow-horned ruminants seem to be different.    From Wordnik.com.  [The Minds and Manners of Wild Animals A Book of Personal Observations] Reference

Formerly, but within the period when most of the now existing shells were living, North America possessed, besides hollow-horned ruminants, the elephant, mastodon, horse, and three genera of Edentata, namely, the Megatherium, Megalonyx, and.    From Wordnik.com.  [Journal of researches into the geology and natural history of the various countries visited by H.M.S. Beagle] Reference

Formerly, but within the period when most of the now existing shells were living, North America possessed, besides hollow-horned ruminants, the elephant, mastodon, horse, and three genera of Edentata, namely, the Megatherium, Megalonyx, and Mylodon.    From Wordnik.com.  [Chapter VII] Reference

And as so many species, both living and extinct, of these same genera inhabit and have inhabited the Old World, it seems most probable that the North American elephants, mastodons, horse, and hollow-horned ruminants migrated, on land since submerged near Behring’s Straits, from Siberia into North America, and thence, on land since submerged in the West Indies, into South America, where for a time they mingled with the forms characteristic of that southern continent, and have since become extinct.    From Wordnik.com.  [Chapter VII] Reference