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522 MR. P. L. SCLATER ON GAZELLA LODERI. [June 18, which both the second incisors were wanting, and as von Nathusius, in his lengthy experience of the Leporines, had recorded1 but two similar cases, the variation would appear to be very exceptional. In the specimen exhibited the single pair of incisors in both upper and lower jaw were longer and more curved than is usual where the smaller upper incisors are present. This was most marked in the lower jaw, the cutting-edges of the incisors, instead of terminating posteriorly on a level with the upper surface of the symphysial end of the mandible, standing 3 millim. above it. In this greater elongation of the incisors the specimen approximated the more closely towards the simplicidentate type. Nathusius had remarked of one of the two examples which fell into his hands that not only were there no traces of the teeth in question, but that there were no. indications of their having been developed and subsequently lost. In the specimen which Prof. Howes exhibited the premaxillae bore a couple of excessively minute perforations, which might possibly be the reduced vestiges of the alveoli of the missing teeth. That of the left side, however, led off into an outwardly directed groove, and from the characters of these passages, in consideration of the recent careful investigation of Aschenbrandt2, he was disposed to regard them as those of transit of palatal branches of the naso-palatine nerve. The cheek-teeth of the specimen showed no features that were exceptional. A letter was read, addressed to the Secretary by Dr. A. A. W . Hubrecht, F.M.Z.S., calling attention to the account of a supposed uew M a m m a l from Sumatra by him, published in the ' Notes from the Leyden Museum ' (vol. xiii. p. 241), under the belief that it would turn out to be an unknown species of Edentate, and which he had proposed to call Trichomanis hoevenii. Further inquiries and information received from Mr. Pruys Van der Hoeven (after whom the supposed new animal had been named) had convinced Dr. Hubrecht that it was an Arctonyx (A. collaris), and that no further hopes could be entertained of the existence of an unknown Edentate in the forests of Sumatra. In reference to his remarks made at the last meeting (see above, p. 400) on the existence of a second Gazelle in Egypt, besides Gazella dorcas, Mr. Sclater exhibited the skin and skull of the male Gazelle of this second species which he had seen alive at Cairo. These had been kindly sent to him by M r. Jennings Bramley. Mr. Sclater had ascertained, by comparison with one of the typical specimens in the British Museum, that they were referable to Mr. Thomas's lately described species Gazella loderi (P. Z. S. 1894, p. 470, pi. xxxii.), the extension of which into Egypt was a novel fact of great interest. 1 Der zoolog. Garten, Jhg. xx. p. 134. 2 Verhandl. d. phys.-med. Gesellsch, Wurzburg, n.F. Bd. xx. No. 2 (p. 11), |
