Part 60

Cephalophus rufilatus, =Gray=, Ann. Mag. N. H. (1) xviii. p. 166 (1846); =id.= List Ost. Sp. B. M. p. 56 (1847); =id.= Knowsl. Men. p. 10, pls. vi. & ix. (animal) (1850); =id.= P. Z. S. 1850, p. 123; =Turner=, P. Z. S. 1850, p. 170; =Gray=, Cat. Ung. B. M. p. 85 (1852); =Temm.= Esq. Zool. Guin. pp. 194, 221 (1853); =Gerr.= Cat. Bones Mamm. B. M. p. 236 (1862); =Fitz.= SB. Wien, lix. pt. 1, p. 166 (1869); =Gray=, P. Z. S. 1871, p. 597, fig. 5 (skull); =id.= Cat. Rum. B. M. p. 26 (1872); =id.= Hand-l. Rum. B. M. p. 95 (1873); =Scl.= List An. Z. S. (8) p. 147 (1883); =Jent.= Cat. Ost. Leyd. Mus. (Mus. Pays-Bas, ix.) p. 132 (1887); =id.= Cat. Mamm. Leyd. Mus. (op. cit. xi.) p. 162 (1892); =Thos.= P. Z. S. 1892, p. 423; =Matsch.= MT. deutsch. Schutz-geb. p. 81 (1893); =Lyd.= Horns and Hoofs, p. 211 (1893).

Antilope (Cephalolophus) rufilatus, =Wagn.= Schr. Säug. Supp. v. p. 425 (1855).

Cephalophus rufilatus cuvieri, =Fitz.= SB. Wien, lix. pt. 1, p. 166 (1869).

VERNACULAR NAME:--Coquetoon on the Gambia (Whitfield).

Size small; form slender. General colour partly bright yellowish rufous, and partly a peculiar bluish grey; the former colour covering the sides of the face, the whole of the neck, the shoulders, flanks, rump, and belly, while the latter prevails on the middle line of the nose, on the forehead, occiput, back of ears, centre of back from withers to rump, and all four limbs, from the elbows and middles of lower legs downwards. Crest long, blackish. Tail rufous above basally, black terminally.

Horns placed in the same line as the nasal profile; those of male short, conical, pointed (but no adult wild specimen is available for description); those of female rudimentary, mere low rounded knobs, hardly projecting above the skin of the head.

Skull with a long and slender muzzle. Anteorbital fossæ remarkably deep, more so than in any other species. Mesial palatal notch about a quarter of an inch anterior to the lateral ones.

Dimensions:--♂. Height at withers 14 inches, ear 2·3, hind foot 7.

Skull (♀): basal length 5·2, greatest breadth 2·6, orbit to muzzle 2·9.

It is difficult to say to which of the other species this peculiar little animal is most nearly allied, especially in the absence of wild-killed male specimens with fully developed horns.

Hab. West Africa, from Gambia to the Niger.

The ninth and last species of the group of Bay Duikers, though agreeing with the preceding species in its generally rufous coat, is distinguishable by its smaller size and lighter colour. The front and dorsal stripe are of a peculiar bluish grey instead of being black, and the whole of the flanks and sides are of a light yellowish rufous.

The Red-flanked Duiker, as we propose to call it, appears to have been confounded by Desmarest, Lesson, Gervais, and other French systematists with the Antilope grimmia of Pallas, which is C. coronatus--both they and the latter ignoring the fact that the name “grimmia” properly belongs to the Common Duiker, C. grimmi, of the Cape. This confusion was first properly cleared up by Dr. Gray, as early as 1846, but it is only quite recently that the correct names for the three species have come into general use. Desmarest, in his article on “Antilope” published in 1816 in the ‘Nouveau Dictionnaire d’Histoire Naturelle,’ was the first describer of the present animal under the name of Antilope grimmia; and in 1821 F. Cuvier, in his ‘Histoire Naturelle des Mammifères,’ gave a figure of it, from a specimen from Senegal, then living in the Jardin des Plantes, under the name of ‘Le Grimm.’

In 1846, in an article published in the ‘Annals and Magazine of Natural History,’ the late Dr. Gray first distinguished the present species from the “Grimm,” and proposed to call it by the appropriate name Cephalophus rufilatus. Dr. Gray based his description upon a pair in the Derby Museum, and on a young female in the British Museum which had been presented to that collection by Lord Derby. This last specimen, which may now be seen mounted in the Mammal-Gallery of the National Collection, was obtained on the Gambia by Lord Derby’s collector, Whitfield. The two types in the Derby Museum are stated to have been obtained at Sierra Leone.

Skull of Cephalophus rufilatus, jr.

(P. Z. S. 1871, p. 597.)]

In the ‘Gleanings from the Knowsley Menagerie’ are contained two figures of this animal: plate vi. fig. 3 gives a full-sized figure of what is apparently a female of this species, and plate ix. represents the heads of both sexes. Both of these plates are marked as drawn by Waterhouse Hawkins from specimens living at Knowsley in 1843. Several specimens of the Coquetoon, as this Antelope is sometimes called, have also been received by the Zoological Society, but have not proved to be long-lived in this country. The first recorded specimen was obtained in 1861, and others were subsequently acquired in 1867, 1879, and 1880. These were all obtained from dealers and had no definite localities attached to them. But we are able to supply some indications of the range of this species from museum specimens. In the British Museum, besides Whitfield’s stuffed specimen from the Gambia already alluded to, there is the skull of an adult animal from the same locality obtained by Sir Gilbert Carter, and a young skull, which has probably been correctly referred to this species from the Niger, obtained by Surgeon Baikie. In the Leyden Museum, as we find by Dr. Jentink’s Catalogue, there is an adult female specimen procured at Dabocrom, in Ashantee, by the collector Pel, and an adult male from Sierra Leone received from the Bremen Museum. In reference to Pel’s specimen, Temminck has informed us that this species is rare on the Guinea coast, but more common in the forests of Sierra Leone. We also find this species recorded by Herr Matschie as one of the Antelopes met with by the collectors of the Berlin Museum in the German Protectorate of Togoland. We may therefore conclude that the Red-flanked Duiker inhabits the whole coast-land of Western Africa between the British Settlement of Gambia and the River Niger.

Our figure of this species (Plate XIX. fig. 1) was prepared under Sir Victor Brooke’s direction, very probably from one of the specimens in the Liverpool Museum.

May, 1895.

THE BOOK OF ANTELOPES, PL. XX.

Smit del. et lith. Hanhart imp.

The Banded Duiker.

CEPHALOPHUS DORIÆ.

Published by R. H. Porter.]

30. THE BANDED DUIKER.

CEPHALOPHUS DORIÆ (OGILB.).

Antilope (?), =Benn.= P. Z. S. 1832, p. 122.

Antilope doria, =Ogilb.= P. Z. S. 1836, p. 121; =Waterh.= Cat. Mamm. Mus. Z. S. (2) p. 42 (1838); =Wagn.= Schr. Säug., Suppl. iv. p. 444 (1844); =Fraser=, Zool. Typ. pl. xviii. (animal) (1849).