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Show 192 MR. J. LEWIS BONHOTE O N [Mar. 6, 4. SCOTOPHILUS CASTANEUS Horsf. Lakon, Chingmai. a. d ad. sk. 25th April, 1898. b. 2 ad. sk. 10th March, 1898. This species is smaller than the true S. kuhli, aud is of a uniform chestnut all over, showing no tendency to become lighter below. The Museum also possesses three specimens of it collected by Mr. Stanley Flower in the Malay Peninsula. Dimensions:- d. Head and body 68 mm.; tail 41 ; hind foot 8; ear 12. 2 . Head and body 70 mm.; tail 43 ; hind foot 9 ; ear 13. The average length of the forearm of the 5 specimens in the Museum is 507 mm., the lengths ranging from 49-52 ; the average length of S. kuhlii is 60-5, showing a variation from 58-63. 5. TUPAIA BELANGERI (Wagner). Nan. a. d ad. sk. 10th April, 1897. b. d ad sk. 5th July, 1897. c, d. d ad. sk. 3rd & 4th Aug., 1897. e-h. 2 ad. sk. 4th, 8th, & 19th Aug., 1897. Chingmai. i. d ad. sk. 24th Feb., 1898. k, I. d ad. sk. 22nd March, 1898. m. 2 ad. sk. 25th Feb., 1898. These are true T. belangeri and not T. ferruginea. 6. HELICTIS PERSONATA (Geoffr.). Nan. a-c. 2 ad. sk. Nov. 1897. These specimens form a valuable and much needed addition to the series of skins of this genus already in the Museum. 7. PETAURISTA LYLEI, sp. n. (Plate XVIII.) General colour above hoary, each hair varying from dark brown to rufous at its base, succeeded by a band of white and a black tip. Colour of the hair rather more rufous on the head. Tail slightly longer than head and body, and black throughout its length but lighter at its base. Ears covered with bright red short hairs over their anterior half and long black hairs on the remainder; these latter hairs spreading on the sides of the neck to form a dark patch behind the ear. Feet and edge of the parachute deep black ; shoulders, thighs, and upper portion of membrane strongly grizzled with rufous. Underparts rich chestnut, brighter on the membrane. Hairs with a tendency to a white tip, especially towards the median line; underpart of chin, whiskers, and tip of nose dark brown. The skull shows no marked differences from that of the other allied species except in its larger size. It is rather rounder and deeper: the nasal bones, which are widened anteriorly, extend |