1869.] LETTER FROM MR. E. L. LAYARD. 135 
18 
Horns of hybrid Chamois. 
a. Horn of pure Chamois, for comparison. 
Chamois and the Domestic Goat. It appears that it is not unusual 
for a tame buck Chamois to interbreed with domestic she-Goats ; 
and as the horns of the hybrid so produced are so remarkable that 
they might well be suspected to indicate some undescribed species, 
intermediate to the Chamois and the Himalayan Thar (Hemitragus 
Jjemlaicus), I now submit a photograph of the series, considering the 
figures to be quite worthy of publication, in order to prevent, if 
possible, any mistake of the kind. For comparison, the horn of a 
pure Chamois (a) is placed along with them. 
February 25, 1869. 
W. H. Flower, Esq., F.R.S., in the Chair. 
A letter was read from E. L. Layard, Esq., F.Z.S., dated Cape 
Town, December 31st, 1868, enclosing a drawing of another species 
of Ribbonfish (Gymnetrus), which had come ashore in rather a bad 
state at Simon’s Bay on: the 23rd of December, 1865, and been 
drawn on the spot by P. D. Martin, Esq. Mr. Layard believed it 
to be perfectly distinct from the species mentioned in a former com- 
munication to the Society (P. Z. S. 1868, p. 319), and could not 
find any description that answered to it. 
The Secretary exhibited specimens of some Reptiles which had 
been collected for the Society’s Menagerie by Mr. George Wilks, of 
Buenos Ayres, C.M.Z.S., but had, unfortunately, died before reach- 
ing their destination. They consisted of two Snakes taken iz copuld, 
which had heen determined by Dr. Giinther to be Coronella anomala, 
Giinth. (Cat. of Snakes, p. 57), and some specimens of a small 
Cayman (Jacare ocellata, Gray). 
Mr. J. E. Harting called the attention of the Meeting to the steps 
