1904.] PECULIARITIES IN CERTAIN MAMMALS. 421 



described upper canines, which do not cut the gum, in the young 

 males of the Abyssinian Antelope, Ourehia montana (Riipp.). 

 Riippell stated expressly that the young females are destitute of 

 them *. 



In a very young Saiga Antelope, A. Nehring desci-ibes and 

 figures a left-side canine lying in a shallow furrow of the maxillary. 

 It is supposed that somewhat later the maxillary would have 

 formed a regular alveolus ; this is, however, unlikely. On the 

 right side there was equally a shallow fvirrow, but the tooth was 

 wanting f. 



H. Nitsche describes in the macerated skull of a few months' 

 old female Chamois {Rupicwpra nqyiccqjra) a distinct alveolus, 

 8 millim. long, of the upper canine which apparently had not cut 

 the gum. The tooth had been lost during maceration +. 



A. Nehring mentions in the skull of p, young Indian Antelope, 

 Antilope cervicapixc, "two well-developed canines in the maxillary" §. 

 No other particulars are given. 



Two skulls of a few days' old specimen of an Antelope from 

 Obock, unknown to the writer, M. Heude, showed each a pair of 

 small procvimbent canines directed forwards. The skull of a half- 

 adult specimen had presei-ved the canine, enclosed in the borders 

 of the maxillary ("encastree dans les bords maxillaires ") ||. 



The same observer mentions that one of four skulls of JVeotragus, 

 age not stated, showed the two canines broken at their " collet" %. 



I append the result of a very cursory review of the Antelope- 

 skulls in the Natural History Museum, made with the intelligent 

 help of Mr. 0. Thomas's young assistant, Mr. E. C. Chubb : — 



(1) Dry skull of Madoqua pUlippsi Thos. (No. 99.12.28.4). 

 No sex stated. Very young specimen ; the three deciduous molars 

 and m. 1 are in situ, all four scarcely worn. On the left side of 

 the maxillary is present a somewhat laterally compressed upper 

 canine, which certainly had not cut the gum. The right-side 

 alveolus is empty. 



(2) Dry skull of half- adult 5 of Madoqua hirkii (Giinth.), 

 No. 1720 B (79.12.18.1), one of the types of Glinther's Neotragus 

 kii'kii, from South Somali. The much-worn deciduous molars 

 are in place, as well as the two anterior true molars. The partly 

 obliterated alveoli of the upper canines are visible on the anterior 

 tapering terminations of the maxillary. 



(3) Dry skull of young Neotragus pyg'nimus (" Nanotragus 

 perpusillus") from Fantee, No. 73.6.22.11. Deciduous molars 

 and m. 1 in place. The upper canines are present ; they are 

 placed almost vertically in the jaw and, being worn, had no doubt 

 functioned. 



(4) Yovmg $ of Gazella picticauda (Hodgs.), the Himalayan 



* P. Z. S. London, part iv. 1836, pp. 3, 4. 

 t Sitzgsber. Ges. nat. Pr. Berlin, 20 Febr. 1883, p. 13. 

 X Tharander forstl. Jalu'b. 1883, 2. p. 23 (of separate), footnote. 

 § Op. cit. 21 Oct. 1884, p. 136. 



II Memoires cone. I'Hist. Nat. de I'Empire Chinois, ii. 4. p. 191, ftn. 2 (1894). 

 •[[ Id. ih. 



