490 ON HORNLESS ANTELOPES FROM THE DINDER RIVER. 
Antarctic Seas, presented by H.G. The Duke of Bedford, K.G., 
Pres. Z.S., on April 6th. 
2 Indian Hlephants (Hlephas maximus) $ 3, from India, pre- 
sented by ‘The Daily Mirror’ on April Ist. 
2 Tigers (felis tigris) $ 2, from Burma, presented by Major 
F. Bigg Wither on April 27th. 
1 Binturong (Arctictis binturong), from Malacca, purchased on 
April 6th. 
A Collection of Mammals and Birds, including 2 Bonda’s 
Squirrels (Sciurus saltwensis bond«), 1 Collared Peccary (Dicotyles 
tajacu), 2 White-browed Hares (Sylvilagus superciliaris), new to 
the Collection ; 1 Pileated Heron (Pilerodius pileatus), new to the 
Collection, 1 Prince Albert’s Curassow (Crax alberti), and 1 Banded 
Tinamou (Crypturus noctivagus), from Rio César, Colombia, pre- 
sented by W. K. Pomeroy, F.Z.S., on April 29th. 
A Collection of Small Birds from Chili, including Chilian 
Starlings (Cureus aterrimus), Little Saffron Finches (Sycalis 
minor), and others, presented by George H. F. Duncan, F.Z.5., 
on April 20th. 
3 Sharp-nosed Terrapins (Vicoria nasuta), from Colombia, new 
to the Collection, presented by Dr. H. G. F. Spurrell, F.Z.8., on 
April 28th. 
1 Merrem’s Xenodon (Xenodon merremii), and 1 Neuwied’s 
Viper (Lachesis newwiedii), both new to the Collection, from 
Cordova, Argentina, presented by Wilfred A. Smithers, C.M.Z.8., 
on April 28th. 
Mrs. R. Hate Tuomas, F.Z.S., exhibited a number of skulls, 
head-skins, and photographs of hornless antelopes found by 
Mr. A. W. Haig in 1903 on the Dinder River, a tributary 
of the Blue Nile. There were two varieties, one larger than the 
other. On his return Mr. Haig submitted the skulls, skins, 
and photographs to the authorities at the British Museum, who, 
while admitting a difference in the formation of the skulls, 
stated their view that the evidence for the existence of hornless 
antelopes was insufficient and that the specimens shown might 
have been females. 
In ‘The Nile Tributaries of Abyssinia,’ first published in 
1867, Sir Samuel Baker tells us he met with and shot hornless 
antelopes on the Royan, a tributary of the Atbara, and we read 
farther on that the animal was already known to science and 
classified by Riippell. Thus it is shown that Baker’s and Haig’s 
hornless antelopes were found on the same watershed, in a 
geographical position not a hundred miles apart. 
Mr. D. M.S. Watson, M.Sc., F.Z.8., exhibited two specimens 
of Procolophon trigoniceps, a Cotylosaurian Reptile from South 
Africa, and drew attention to certain sexual differences in this 
species. 
