258 THE SECRETARY ON ADDITIONS TO THE MENAGERIE. [Feb. 15, 



Fig. 2. Otopoma turhinatum, n. sp., p. 256. 



3, 3 a. Tropidopliora socotrana, n. sp., p. 255. 

 3 b. Operculum of same. 



4. Tropiclophora halfouri, n. sp., p. 256. 



5. Cychtof&ia ornatus, n. sp„ p 257. 



5 a. Operculum of ditto. 



6, 6 a. Lithidion marmorosum, n. sp., p. 255. 



6 6, 6 c. Apex of ditto, much enlarged. 



February 15, 1881. 

 Prof. Flower, LL.D., F.E.S., President, in the Chair. 



The Secretary read the following report on the additions to the 

 Society's Menagerie during the month of January 1831 : — 



The total number of registered additions to the Society's Mena- 

 gerie during the month of January was 46, of which 30 were by 

 presentation, 1 by birth, 12 by purchase, and 3 were received on 

 deposit. The total number of departures during the same period, 

 by death and removals, was 163. 



The most remarkable additions during the month of January were 

 as follows : — 



1. A White-nosed Saki (Pithecia albinasa), purchased January 

 11th, and apparently likely to do well. So far as I can make 

 out, the typical example of this species in the Paris Museum has 

 hitherto remained unique in Europe ; so that we are fortunate in ob- 

 taining an example of so rare a species. 



The animal, of which I exhibit a sketch by Mr. Smit (PI. XXIX.), 

 is uniformly, but rather sparingly, covered with black hairs. The 

 nose is broadly naked and of a bright fleshy red, but shows a few white 

 hairs between the nostrils, which are sufficient to justify its scientific 

 name. The long hairs on the head fall on both sides of the head 

 and over the front. The length of the body is about 15 inches, of 

 the tail 18 inches. The latter organ, although clothed with elon- 

 gated hairs, appears to be slightly prehensile. The specimen is of 

 the female sex, apparently not fully adult. 



The following references belong to this species : — 



Pithecia albinasa. (Plate XXIX.) 



Pithecia albinasa, Is. Geoffroy Saint-Hilaire et Deville, Compt. 

 Rend, xxvii. p, 498 (1848) ; Geoffroy St.-Hilaire, Arch, du Mus. 

 t. V. p. 559; Gervais, Exped. de Castlenau, Mamm. p. 16, t. ii. 

 fig. 2. 



Chiropotes albinasa, Gray, Cat. of Monkeys in B. M. p. 61 

 (1870). 



2. An American Monkey of the genus Callithrix, probably refer- 

 able to C. brunnea, Wagner (ex Natt. MS.), but not very easily 

 determinable while alive. This specimen was purchased along with 



