86 THE SECRETARY ON ADDITIONS TO THE MENAGERIE. [Feb. 10, 
The following is a description of the specimens :— 
Height of body considerably more than length of head, which is 
one-fifth of the total length without caudal. Head depressed ; its 
width is five-sixths of its length ; eye very small; interorbital space 
half the length of the head; width of mouth less than that of in- 
terorbital space ; labial disk well developed. 
Barbels four in number, the upper nearly double the diameter of 
theeye. Four and a half longitudinal series of scales between the 
lateral line and the root of the ventral. 
Pectoral as long as head, terminating at about its own length be- 
fore root of ventral. Caudal deeply emarginate, lobes equal. 
Colour silvery, darker above ; a black spot behind upper end of 
gill-opening; tip of snout blackish; no lateral band; no darker 
spot at base of caudal. 
Length 5 inches. 
February 10, 1870. 
John Gould, Esq., F.R.S., V.P., in the Chair. 
The Secretary called the attention of the Meeting to the following 
additions to the Menagerie during the month of January :-— 
1. A specimen of the Great Northern Diver (Colymbus glacialis), 
captured in Cornwall, and presented to the Society by A. R. Hunt, 
Esq., January 6th. The bird, which was believed to be the first 
specimen of the species ever obtained by the Society alive, had been 
rather shy at first, but had been gradually induced to feed, and now 
seemed likely to do well. It appeared to be a bird of the year. 
2. A small Armadillo, purchased January 15th of Mr. E. Paddi- 
son. This Armadillo, which Mr. Sclater referred with some doubt 
to the Little Armadillo (Dasypus minutus), was stated to have been 
captured on the eastern slope of the Andes of La Plata, at an ele- 
vation of 3000 feet, in 35° 15'S. lat. 
3. Five Brown Tritons (Geotriton fuscus), from the vicinity of 
Spezia in Italy, purchased January 22nd, and believed to be the first 
specimens of this Batrachian exhibited in the Society’s collection. 
4. A female Potto ( Perodicticus potto), purchased January 24th, 
making a pair of this scarce Lemurine form now living in the So- 
ciety’s collection. 
The Secretary likewise reported that Mr. G. S. Rodon had pre- 
sented to the Society the survivor of the two White-handed Gibbons 
(Hylobates lar) which he had deposited in the Society’s Gardens 
on the 17th of November last—and that since the death of its fellow 
this animal had been placed in the same cage as the Hoolock Gibbon 
(Hylobates hoolock), presented by Mr. Grote, so that the two species 
might now be seen and compared together. A drawing (Plate V.) 
was exhibited, representing these two animals. 

