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Show 1873.] SIR V. BROOKE ON THE GENUS GAZELLA. 543 usually long ears. As I have said above, I think the larger Gazelle seen by Tristram in Algeria was probably of this species. A skull in my possession is very nearly as large as that of Gazella scem-merringii. 7. GAZELLA LEPTOCEROS. 1827 ? Antilope leptoceros, F. Cuvier, Hist. Nat. Mamm. ? 1844. . , Wagn. Schreb. Supp. iv. p. 423. 1846. , Sund. Pec. p. 269. 1852. Gr. dorcas, var. 4, Gray Cat. Mamm. Mus. Brit. p. 57. 1853. Gr. arabica, Temm. Esq. Zool. p. 193. 1855. Antilope leptoceros, Wagn. Saugeth. p. 407. 1859. , Gieb. Saugeth. p. 309. 1863. , Heugl. Ant. u. Buff. p. 7. 1869. , Heugl. Reis. Weiss. Nil, p. 315. The following is Heuglin's description of this species, which I extract, never having had the opportunity of examining specimens :- " A species decidedly distinct from A. dorcas. The horns are weaker and longer, running parallel for about half their length, the points inclining first outwards and then very slightly inwards The nose-spot is at times very indistinct, occasionally sharply marked and dark brown. Between the brownish-yellow colour of the back and the sharply defined black side line of scarcely two inches breadth is seen a much paler line of about a hand's breadth, distinctly defined from the colour of the back." Hab. Berber; banks of the Setit; Senaar, Kordofan, and along the Bahr el Abiad. The above description agrees very well with that given by Frederick Cuvier. There is a head of a female Gazelle in the British Museum collected by Captain Harris, which I believe to belong to this species. In this specimen the horns are of very great length, longer than I have ever seen in a female Gazelle. 8. GAZELLA SPEKII. Gazella spekii, Blyth, Journ. Asiat. Soc. Beng. 1856, vol. xxiv. p. 296 ; Blanf. Geol. and Zool. Abyss, p. 261, pl. 1. fig. 5-5«. Head and neck of male and female only known. " Ears of an ash-grey colour, contrasting strongly with the line of the neck, and doubtless also of the body. Horns robust, curved backwards and then upwards, and diverging but slightly The horns of the female are very much stouter than we have seen in any other female Gazelle. Muzzle whitish, with a strongly contrasting nose-patch." (Blyth.) Hab. Somali country (Speke). Mr. Blanford has kindly furnished me with photographs of the type specimens of this species which are in the Calcutta Museum. The horns appear very like those of Gazella arabica; but in the markings of the face, neck, and ears the Somali Gazelle appears to differ considerably from that inhabiting Arabia. |