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Show 1902.] THE SECRETARY ON ADDITIONS TO THE MENAGERIE. 237 Total length 220 millim. A single specimen from the Lukula River, preserved in the Royal Natural History Museum, Brussels. I avail myself of this opportunity to propose the name of Pelmatochromis polyodon for the fish from Monsembe which I have recently described (Ann. Mus. Congo, Zool. ii. p. 53) as 1\ tceniatus, having overlooked the fact that the same name had been previously bestowed on a species from Nigeria. EXPLANATION OF THE PLATES. PLATE XXII. Fig. 1. Allabenchelys longicauda, p. 234, f nat. size. 1 a. „ ,, Upper surface of head, f nat. size. 2. Clariallabes melas, p. 235, | nat. size. PLATE XXIII. Labeo lukula, p. 235, with view of open mouth, § nat. size. PLATE XXIV. Chilochromis duponti, p. 236, with view of open mouth, J nat. size. April 15, 1902. Prof. G. B. HOWES, LL.D., F.R.S., Vice-President, in the Chair. The Secretary read the following report on the additions made to the Society's Menagerie in March 1902 :- The registered additions to the Society's Menagerie during the month of March were 146 in number. Of these 38 were acquired by presentation, 18 by purchase, 3 wTere born in the Gardens, and 87 were received on deposit. The total number of departures during the same period, by death and removals, was 143. Amongst the additions attention may be specially directed to:- 1. A Monkey of the genus Cercopithecus, procured by Major Delme-Radcliffe in the Latuka, Mountains, about a hundred miles east of the Upper Nile in Northern Uganda, and presented to the Society on March 1st. This Monkey appears to belong to a new species allied to Cercopithecus leucampyx, but easily distinguishable by the white ear-tufts and grey back. I propose to name it Delme-Radcliffe's Monkey (Cercopithecus otoleucus). It may shortly be described as follows :- CERCOPITHECUS OTOLEUCUS. (Plate XXV.) Above fuliginous, back more or less grizzled with pale fulvous, head above black ; frontal line white, with hairs rather elongated |