580 PROF. M. WATSON ON THE [June 20, 
extremely accurate account of that anatomist. Only in one or two 
unimportant points did the viscera of my specimen differ from those 
of Mr. Flower’s example. In the latter the small and large intes- 
tines measured respectively 9 feet 6 inches and 15 inches in length, 
while in my own specimen they measured 10 feet 2 inches and 
17 inches in length. In my specimen the prostate gland was of much 
larger size than in Mr. Flower’s specimen. As described by him 
that gland measured, if I understand the figures correctly, three 
quarters of an inch in length and one inch in breadth ; while in my 
specimen the gland was heart-shaped, the apex of the gland point- 
ing backwards, and measured one inch in length and two inches in 
its greatest breadth at the base. Similarly in my specimen the anal 
glands were each twice as large as those described by Flower. The 
difference in size of the prostate and anal glands in the two speci- 
mens is probably due to difference in age. I have before shown* 
that in Hyena crocuta these organs only attain their full size in 
aged specimens ; and the same remark is probably applicable to Pro- 
teles cristatus. 
In every other respect (with the exception of the brain, which I 
did not examine) J found that the viscera accurately corresponded 
with the excellent description of Professor Flower. 
In a previous communication? I pointed out that in Hyena 
crocuta the external and internal iliae arteries present a somewhat 
unusual arrangement, inasmuch as they come off as distinct trunks 
from the abdominal aorta. In Proteles cristatus these arteries 
present the same peculiarity. 
Hitherto, so far as I can ascertain, the muscular anatomy of Pro- 
teles has not been investigated. With the view of supplementing 
this deficiency I have carefully compared the muscles of Proteles 
with those of Hyena crocuta. The following notes indicate the 
points in which the muscular system of the former differs from that 
of the latter animal. It will be understood, where no mention is 
made of a muscle, that in Proteles the arrangement is identical with 
that which obtains in Hyena crocuta. 
In instituting this comparison I have availed myself of the paper 
on the anatomy of Hyena crocuta contained in the ‘ Proceedings’ of 
the Society for the year 1879 °*. 
Muscles of the Head and Neck. 
The sterno-cleido-mastoid exactly resembles that of Hyena, but 
differs from that of Viverra civetta, in which the ‘“‘ sterno-mastoid 
is quite distinct from the cleido-mastoid ”’ *. 
* Proc. Zool. Soc. 1878, p. 419, footnote, and P. Z. 8. 1881, p. 519. 
2 Proc. Zool. Soc. 1879, p. 79. 
3 Watson and Young, ‘On the Anatomy of Hyena crocuta,’ Proc. Zool. 
Soc. 1879, p. 79. 
+ “On the Myology of Viverra civetta,” by A. H. Young, M.B., ‘ Journal of 
Anatomy, vol. xiv. This paper is taken as my authority on the myology of 
the Civet in making the comparison of the muscular anatomy of Proteles and 
Viverra. 
