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Show 626 THE SECRETARY O N ADDITIONS TO T H E MENAGERIE. [May 17, caecum, with a portion of both ileum and colon, and then it with ^-per-cent. chromic acid, placing it in a vessel of the same fluid. This was changed after the first day, and replaced by acid of the same strength, in which it was left for a week or so, after which the cascum was washed, and then distended with, and placed in, weak spirit for a short time, and finally in strong methylated spirit. EXPLANATION OP PLATE Mil. Figs. I., II. Lepus timidus. III., IV. Lepus cuniculus. c, caecum, co, colon, i, ileum, i.c, ileo-colic aperture, p1, large intracolic Peyer's patch, p2, small intracolic Peyer's patch, s, sacculus rotundus. s.c, aperture of sacculus into colon. •»•**, large intracolic valve, v2, second valve, which is sometimes continuous with the spiral valve of the caecum, v3, spiral valve of the caecum. • May 17, 1881. Prof. W. H. Flower, LL.D., F.R.S., President, in the Chair. The Secretary read the following report on the additions to the Society's Menagerie during the month of April 1881 :- The total number of registered additions to the Society's Menagerie during the month of April was 117, of which 66 were by presentation, 5 by birth, 24 by purchase, 7 by exchange, and 15 were received on deposit. The total number of departures during the same period, by death and removals, was 109. The most remarkable additions during the month of April were as follows :- 1. A n Indian Darter, Plotus melanogaster, received in exchange from the Zoological Gardens, Calcutta, April 8th. This is the first living example we have received of the Indian Darter, previous examples of this genus having belonged to Plotus anhinga of South America and Plotus levaillanti of Africa. Of the former we have at present a specimen in the Gardens. The Indian Darter is readily distinguishable from the American species by its longer and more slender neck and longer tail, not to mention differences of coloration. 2. A young female Beisa Antelope {Oryx Beisa), born in the Gardens April 12th, believed to be the first example of this Antelope that has been bred in captivity. I exhibit a coloured drawing of this animal by Mr. Smit (see Plate LIV.), which may be compared with the figures of the young Leucoryx given in the ' Knowsley Menagerie ' (plate xvi.). 3. A Mountain K a K a {Nestor notabilis), transmitted as a present to the Society by Dr. A. de Lautour, of Otago, N e w Zealand. Dr. de Lautour has favoured me with the subjoined particulars concerning this bird:- " I have the pleasure of informing you that I a m sending home for |