Mr. C. Forster Cooper on Metamynodon bugtiensis. 617 
their structure at all clearly, it is impossible to say anything 
as to their nature, 
It is very difficult, knowing nothing as to the conditions of 
the gonads as a whole, to say what the meaning of the 
observed condition is. In the cases described by Goodrich 
and Orton, where the gonads were preponderatingly male, we 
naturally suspect that we are dealing with a condition of 
protandric hermaphroditism, though it is not impossible that, 
the abnormal gonad was female from its first differentiation. 
On the whole, the balance of probability seems to me to be 
in favour of this view in this case also, There is much more 
male tissue present than female, and the condition of the 
testes which contain ova resembles rather that of an original 
male gonad which has been invaded by ovarian tissue ‘than 
the reverse, the ova being apparently mainly young and 
having little or no appearance of degeneration, Any attempt 
at a theoretical interpretation is, I think, better avoided 
for the present, until we know more of the facts than 
we do now. 
LXXIV.—Metamynodon bugtiensis, sp. ., from the Dera 
Bugtt Deposits of Baluchistan.—Preliminary Notice. By 
C. Forster Cooper, M.A., Superintendent of the 
University Museum of Zoology, Cambridge. 
AMONG the fragments of numerous rhinoceroses found in the 
deposits of Dera Bugti in Baluchistan is a palate and two 
other fragments of a form which appears to be sufficiently 
different from the rest to be described as a new species. 
The type-specimen is a palate with six teeth on each side, 
the last pair being just erupted from their alveoli. 
The position of this animal depends somewhat on the 
correct interpretation of these teeth. If, as is the writer’s 
belief, the last pair represent the third molars, then, from 
their shape, the specimen must be placed in the neighbourhood 
of the Amynodonts, with which genus it is provisionally 
placed, although further material, when found, may demand 
a hew genus tor its reception. 
The reason for regarding these teeth as the third molars 
lies in the fact that they occupy all the available space at the 
back of the series, except for the very small area of the post- 
alveolar tuberosity. ‘This area on each side, as weli as the 
posterior border of the palate, is unbroken and in good 
condition. On one side the tuberosity has been sectioned, 
Ann. & MagaN. Hist. Ser. 9. Vol. ix. 40 
