192 MR. F. E. BEDDARD ON THE [ Feb. 16, 
The Sylvian fissure in the usual Artiodactyle fashion starts 
from the edge of the depressed gyrus arcuatus. On one side of 
the body it is short and runs in a straight course dorsally, being 
just hooked over anteriorly at the summit. On the other side it 
is shorter still. There is nothing particular to say of the anterior 
and posterior ectosylvians. 
Text-fig. 17. 
Brain of Madoqua phillipsi, lateral view. Natural size. 
s. Sylvian fissure. Other letters as in text-fig. 16. 
The coronal sulcus, whose course on either side is straight 
and parallel with the median sulcus, sends a branch inwards 
at its posterior end as in other Artiodactyles. This branch, 
however, does not reach the middle line of the brain on either 
side. In front of this the gyrus lymg between the median sulcus 
of the hemispheres and the coronal sulcus is indented by the 
emergence of the splenial sulcus, this indentation being, as I 
presume, the equivalent of the crucial sulcus in other <Artio- 
dactyles such as Ovis*. 
(6) The Brain of Babyrussa alfurus. 
Although the brain of this Suid has been already described by 
Vrolik +, the description and figures were published a great many 
years ago and, moreover, do not agree in every detail with the 
specimens which I have myself had the opportunity of studying. 
T have examined carefully the brains of two examples of Labyrussa 
alfurus which have died in the Society’s Gardens during the last 
four yearst, one of which has been drawn for me by Mr. W.S. 
Berridge, F.Z.S. and is represented in the accompanying text- 
figure (text-fig. 18, p. 194). Theanimal wasa female. The length 
of the hemispheres in a straight line is 82 mm., the greatest 
diameter of the brain 62 mm. I have compared this brain with 
* Blliot Smith, Joc. cit. fig. 195, p. 340. 
+ Vrolik in N. Verhand. Nederl. Inst. Amsterdam, vol. x. 1844, p. 207. The 
paper is written in French. The brain is figured in dorsal and ventral views and 
in section. 
t The first died June 29th, 1905, the second Jan. 6th, 1908. 
