1891.] mr. o. thomas on ungulates. 385 



1. The Chevrotains. 



The species of Traguliis appear to be rather less in number tban 

 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 



rui'oiis or fiilvous edging. 

 a^. Size large, hind foot with hoofs 140-150 tnillim. 

 Hab. S.Tenasseriin, Malay Peninsula, Sumatra, 



and Borneo 1. T. najw, F. Cuv.^ 



b. Rufous, at least on sides and along edges of belly, 

 i'. Briglit rufous above ; back of neck not darker 



than the rest of the upper surface. Size 

 medium ; hind foot about 130 millira. 



Hah. " Simda Islands " (3/i7?!c-£Vtoar(/.«) 2. T. stanleyanu^, Qr. 



c'. Greyish above, brightening to rufous on sides. 



A darker line, sometimes nearly black, along 



nape of neck. Size small ; hiud foot 1 10- 



125 millim. 



Hcd). Camboja, Cochin China, S. Tenasserim, 



Malay ]:'eninsula, Sumatra, Borneo, and 



Java 3. T. javaniciis, (jiviiv\. 



B. Body spotted with white. Chin and throat all 

 equally hairj'. 



c. Size medium ; hind foot about 1.30-1.35 millim. 



//«6. India and Ceylon 4. T. 'nieminiia,'E,rx\. 



The West-i\frican Chevrotain, " Hyomoschus^' aquaticus, Og., is, 

 as stated by Poniel, Riitimeyer, and others ', certainly congeneric with 

 the fossil Dorcutherium naui, Kaup, described in 1 836, nine years 

 before Gray formed the genus Hyomoschus. The animal will there- 

 fore have to stand as Dorcutherium aquaticum. 



2. Llamas and Alpaca. 



It is clear that the generic name of this group must be Lama 

 and not Auchenia, 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. gen. 1800 ; Desm. N. 



Diet. d'H. N. (1) xxiv. Tabl. p. 31, 1804; G. Fisch. 



Zdognosia, iii. p. 3.")1 (1814). 

 Lactna, Tiedem. Zuul. i. p. 420 (1808). 

 Auchenia, 111. Prod. S. N. p. 103 (1811); G. Cuv. R. A. i. 



p. 2o(1817). 



Many suggestions have been made as to the true relationship that 



Ann. Sci. Nat. (5) ii. p. 49 (1864). 



The references to these names are all given in Prof. Milue-Edwards's paper. 



For references, see Lydekker. Cat. Foss. Mamm. B. M. ii. p. 1.j3 (1885). 



1 



