222 PROF. NEWTON ON THE WHITE RHINOCEROS.  [Mar. 17, 
I fancy that the single papilla at the base of the penial process is 
rather nearer to the base than is figured by Michaelsen, and much 
nearer than in the West-African form, and, moreover, it appeared 
to me to be not symmetrical in its position. The clitellum was 
not seen by Michaelsen at all. In my specimens the clitellum 
occupied the same segments; but, as in the species described by 
myself from Western Africa, that generative region was somewhat 
undefined in its beginning and ending. The greatest number of 
segments referable to the clitellum in the West-African species 
are from xlv.—lxxxv.; but the clitellum was only fully developed 
upon segments xlvii—Ixxxii. Its general appearance was precisely 
like that of the species which I have just mentioned. In the 
present species—and the observations apply to more than one 
specimen, and are therefore all the more reliable as an expression 
of normal conditions—the clitellum was much shorter, only 
extending from segments xl.-Ixxi. This rather leads me to the 
inference that the species with which I am concerned here is in 
reality different from that which I described from McCarthy Island 
on the Gambia, and referred to A. stuhlmannt. The present worm 
is undoubtedly A. stwhlmanni; and it seems to be necessary, on 
account of the difference in the clitellum, to use another name for 
the West-African form. I would propose, therefore, to call the 
latter A. budgetti. It is, however, clearly a very close ally of 
A. stuhlmanni. It is interesting to note that the species of this 
genus go more or less in couples. The East-African A. nilotica 
corresponds to my A. millsoni from West Africa, while A. stuhlmanni 
seems to be nearest to the form which I propose to name A. budgetti. 
At present more information is wanted about A. emint; but it 
appears to be formed rather after the plan of A. mllsoni and 
A. nilotica. For in those species there are special setze on the penial 
processes, while in A. stuhlmanni and S. budgett: there are sete of 
the same pattern as those on the body generally. 
March 17, 1903. 
G. A. Boutencer, Esq., F.R.S., Vice-President, 
in the Chair. 
The Secretary exhibited, on behalf of Prof. Newton, F.RS., 
three photographs of the White Rhinoceros (Rhinoceros simus), 
sent to him with the following letter by Mr. C. R. Saunders, 
C.M.G., Chief Magistrate and Civil Commissioner in Zululand :— 
Kshowe, Zululand, 
DEAR Sir, 6th January, 1903. 
I received a letter from you in August 1900, following 
on an account, written by me in ‘ The Field,’ of an interview I had 
with White Rhinoceroses about that time. I did not answer 
your letter at the time, hoping I should be able before long to 
send you a photograph of the living animal. This, however, I 
