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Show 724 MR. G. E. DOBSON ON THE MOLOSSI. [NOV. 7, neath, less white at the base of the hairs, but slightly greyish at the tips. Distribution of the fur upon the wing-membrane as in N. cestoni; a narrow band of short hairs behind the anterior two thirds of the forearm on the upper surface. In 6" a thick tuft of long hairs arises from the back of the deep band connecting the ears; in $ this hair is not longer than on the adjoining inner sides of the backs of the ears. Lower incisors very small, crowded; first upper premolar minute, with an acute cusp, in the centre of the space between the canine and second premolar. Length (of an adult d): head and body 2"*1 ; tail 1"*25, tail free from membrane 0"*75 ; head 0'*8; ear 0"*65, tragus 0"* X 1 0"*03; forearm 1"*5 ; thumb 0"*7; second finger-metacarp. 1"*4, 1st ph. 0"*6, 2nd ph. 0"*7; third finger-metacarp. 1"*35, 1st ph. 0"*5, 2nd ph. 0"*4 ; fourth finger-metacarp. 0"*85, 1st ph. 0"*4, 2nd ph. 0"*2; tibia 0"*5 ; foot and claws 0"*25. Hab. Africa (Abyssinia, Nubia, Egypt). 9. NYCTINOMUS LIMBATUS. Dysopes limbatus, Peters, Reise nach Mossambique, Saugeth. i. p. 56 (1852). Nyctinomus leucogaster, Grandidier, Rev. et Mag. Zool. 1869, p. 337. This form can be distinguished from N. pumilus only by the different colour of the fur of the ventral surface and of the wing-membranes, and by the slightly broader tragus. In every other respect it agrees so perfectly in structure and measurements with that species, that I can scarcely consider it specifically distinct. Fur above dark brown, also the shoulders, throat, and upper part of the breast; the remaining parts of the ventral surface pale yellowish white, and the wing, antebrachial, and inferior surface of the interfemoral membrane of the same colour. In immature individuals the white colour of the ventral surface is not so much extended, but appears as a more or less broad patch on the abdomen, increasing in extent according to age. Hab. Africa, south of the Equator (Zanzibar, Mozambique, Angola) ; Madagascar. This appears to be the southern representative of N. pumilus. 10. NYCTINOMUS ANGOLENSIS. Nyctinomus angolensis, Peters, Jorn. Scien. Mathem. Phys. e Natur. Lisboa, vol. iii. p. 124 (1870). Ears much shorter and more triangular than in any of the species previously described, conjoined on the muzzle by a very deep band, as in N. pumilus ; the antitragus and keel of the ear-conch as in that species ; integument of the ears thick ; tragus very small, quadrate, superior margin directed upwards and outwards. Upper lip remarkably thick in front, so that the extremity of the nose does not project much beyond its margin, its sides grooved by vertical furrows. |