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Show 664 THE SECRETARY ON ADDITIONS TO T H E MENAGERIE. [Dec. 1, and much more convex anteriorly, and the posterior prolongation of the postorbital process is not in contact with the skull behind, whereas in L. dayanus this prolongation joins the skull so as to leave a foramen behind the postorbital process, as in L. mediterraneus, which has on this ground alone been considered generically distinct from other Hares by Dr. Gray (Ann. & Mag. Nat. Hist. 1867, ser. 3. xx. p. 222). In the skull of L. dayanus which I have examined, the postorbital process is not anchylosed with the frontals behind the foramen; but it may very probably be so in older animals. All the teeth are smaller than in L. ruficaudatus; and the upper incisors appear very indistinctly grooved in the new species, and, so far as I can judge, never have the raised ridge along the front part of their inner edge, so conspicuous in old skulls of L. ruficaudatus. The measurements of a dried skin can only be approximative. The whole length from the nose to the rump appears to be about 18 inches. The ears are about 4\ inches long from the orifice to to tip, and nearly 2 | broad ; in fresh specimens they would be 5 inches long at least. The tarsus and hind foot to the end of the claws measure just 4 inches : this measurement, of course, would be the same in the living animal; and I find it constant in three specimens. The skull extracted is imperfect behind; the breadth across the hinder and broadest part of the zygomatic arches is 1*55 in. across the frontal bones where narrowest, between the foramina behind the postorbital processes 0*47; length of suture between the nasal bones P I. This species is apparently the common Hare of Sind. Dr. Day has brought several skins from near Sakhar. December I, 1874. Dr. A. Giinther, F.R.S., V.P., in the Chair. The Secretary made the following report on the additions to the Society's Menagerie during November 1874 :- The total number of registered additions to the Society's Menagerie during the month of November was 79 ; of which 4 were by birth, 38 by presentation, 18 by purchase, 1 received in exchange, and 18 received on deposit. The total number of departures during the same period, by death and removals, was 104. The most noticeable additions during tbe month were: - 1. A n example of Humboldt's Saki (Pithecia monachus), purchased November 2nd. Of this rare American Monkey we have previously received only one living specimen, which was figured and described by Prof. Flower, P. Z. S. 1862, p. 326. 2. A fine male of the larger form of the Patas Monkey (Cercopi-thecus ruber ?), presented by Dr. R. F. Mayne, on the 3rd November. Dr. Mayne, in reply to inquiries, tells m e that this monkey was purchased at Lagos, West Africa, where be informs m e this species is |