differs in no important points of organisation from the rest of the Cervidæ. _Hydropotes_ {220}(1 species) inhabits China from the Yang-tse Kiang northwards. This new genus has recently been discovered by Mr. Swinhoe, who says its nearest affinities are with _Moschus_. Other new forms are _Lophotragus_, and _Elaphodus_, both inhabiting North China; the former is hornless, the latter has very small horns about an inch long. _Extinct Deer._--Numerous extinct species of the genus _Cervus_ are found fossil in many parts of Europe, and in all formations between the Post-pliocene and the Upper Miocene. The Elk and Reindeer are also found in caves and Post-pliocene deposits, the latter as far south as the South of France. Extinct genera only, occur in the Upper Miocene in various parts of Europe:--_Micromeryx_, _Palæomeryx_, and _Dicrocercus_ have been described; with others referred doubtfully to _Moschus_, and an allied genus _Amphimoschus_. In N. America, remains of this family are very scarce, a _Cervus_ allied to the existing wapiti deer, being found in Post-pliocene deposits, and an extinct genus, _Leptomeryx_, in the Upper Miocene of Dakota and Oregon. Another extinct genus, _Merycodus_, from the Pliocene of Oregon, is said to be allied to camels and deer. In South America, several species of _Cervus_ have been found in the Brazilian caves, and in the Pliocene deposits of La Plata. It thus appears, that there are not yet sufficient materials for determining the origin and migrations of the Cervidæ. There can be little doubt that they are an Old World group, and a comparatively recent development; and that some time during the Miocene period they passed to North America, and subsequently to the Southern continent. They do not however appear to have developed much in North America, owing perhaps to their finding the country already amply stocked with numerous forms of indigenous Ungulates. {221}FAMILY 51.--CAMELOPARDALIDÆ. (1 Genus, 1 Species.) GENERAL DISTRIBUTION. __________________________________/\__________________________________ / \ NEOTROPICAL| NEARCTIC |PALÆARCTIC | ETHIOPIAN | ORIENTAL | AUSTRALIAN SUB-REGIONS|SUB-REGIONS|SUB-REGIONS|SUB-REGIONS|SUB-REGIONS|SUB-REGIONS. -----------+-----------+-----------+-----------+-----------+------------ LIVING SPECIES. | | | | | -- -- -- --|-- -- -- --|-- -- -- --|1 -- 3 -- |-- -- -- --|-- -- -- -- | | | | | EXTINCT SPECIES. | | | | | -- -- -- --|-- -- -- --|-- 2 -- -- |1 -- -- -- |-- -- 3 -- |-- -- -- -- | | | | |