OCR Text |
Show 1891.] MR. O. THOMAS ON UNGULATES. 385 1. THE CHEVROTAINS. The species of Tragulus appear to be rather less in number than was admitted by Prof. Milne-Edwards in his monograph of the group \ as T. kanchil does not seem to be separable from T.javanicus. The authors'names also used by Prof. Milne-Edwards want some revision, as in two out of the four species the first mention of the animal was unaccompanied by a Latin binomial name. The following synopsis shows briefly the characters, ranges, and proper names of the four species which deserve recognition :- A. Body not spotted with white. Skin between rami of lower jaw naked, glandular. Malayan. a. Dark smoky-grey, belly greyish white without rufous or fidvous edging. a1. Size large, hind foot with hoofs 140-150 millim. Hab. S.Tenasserim, Malay Peninsula, Sumatra, and Borneo 1. T. napu, F. Cuv.2 b. Rufous, at least on sides and along edges of belly. ft1. Bright rufous above ; back of neck not darker than the rest of the upper surface. Size medium ; hind foot about 130 millim. Hah. " Sunda Islands " (Milne-Edwards) 2. T. Stanley anus, Gr. e\ Greyish above, brightening to rufous on sides. A darker line, sometimes nearly black, along nape of neck. Size small; hind foot 110- 125 millim. Hab. Camboja, Cochin China, S. Tenasserim, Malay Peninsula, Sumatra, Borneo, and Java 3. T. javanicus, Gmel. B. Body spotted with white. Chin and throat all equally hairy. c. Size medium ; hind foot about 130-135 millim. Hab. India and Ceylon 4. T. meminna, Erxl. The West-African Chevrotain, " Hyomoschus" aquaticus, Og., is, as stated by Pomel, Rutimeyer, and others3, certainlv congeneric with the fossil Dorcaiherium naui, Kaup, described iu 1836, nine years before Gray formed the genus Hyomoschus. The animal will therefore have to stand as Dorcatherium aquaticum. 2. LLAMAS AND ALPACA. It is clear that the generic name of this group must be L A MA and not A U C H E N I A , as Cuvier, the founder of the former name, had no more power to withdraw it than any other author. The earlier references to the two names are as follows :- Lama, G. Cuv. Anat. Comp. i. Tabl. ge'n. 1800 ; Desm. N. Diet. d'H. N. (1) xxiv. Tabl. p. 31, 1804; G. Fisch. Zoognosia, iii. p. 351 (1814). Lacma, Tiedem. Zool. i. p. 420 (1808). Auchenia, 111. Prod. S. N . p. 103 (1811); G. Cuv. R. A. i. p. 25(1817). Many suggestions have been made as to the true relationship that 1 Ann. Sci. Nat. (5) ii. p. 49 (1864). i The references to these names are all given in Prof. Milne-Edwards's paper. ' For references, see Lydekker. Cat. Eoss. Mamrn. B. M . ii. p. 153 (1885). |