1871. ] Proceedings of the Asiatic Society. 195 
also distinct from HH. Dussimieri, D. and B. Characters of the 
three species accompanied by drawings are given. 
Mocoa Sikkimensis is redescribed and is not the same as Giinther’s 
Lum. Himalayanus. 
Mocoa sacra, nu. sp. Like Sikkimensis, but more slender, with 22 
longit. series of scales round the body and 40 transverse series 
between the limbs; ear denticulate in front ; sub-caudals enlarged 
from near the anus; bronze brown above with a few dark spots, 
blackish at the anterior side ; rest greenish white. Parisnath ; W. 
Bengal. 
A new species of the very rare genus Ristella, Gray, has been 
discovered by Major Beddome in South India. A figure and des- 
cription of it is given. It is named by Beddome &. Malabarica. 
Riopa anguina, Theobald. Dr. Anderson has included two 
different species under this name (see Proc. Zool. Soc. Lon. 
1871, p. 159). The measurements and dimensions are mostly 
those of true anguina, but the coloration is taken from a species 
which Theobald (Lin. Soc. Jour. Zool. p. 26) most probably noted 
under the name &. Boringi, but which is distinct from both these 
species. It differs from the former by its much longer limbs, but 
chiefly by its coloration ; from the latter by the structure of scales, 
&c. The specific name cyanella is proposed for this new species. 
Riopa albopunctata and Hardwickii. Notes on the structural 
affinities as well as on the geographical distribution of these two 
species are given. 
[This paper will appear, with numerous illustrations, in the Ist 
number of the Nat. Hist. Part of the Journal for the ensuing year. | 
6. On Hamitron BucHANAN’S ORIGINAL DRAWINGS OF FISH IN THE 
Liprary or THE Asiatic Soctery oF Beneat, by Surgeon F. Day. 
In the Library of the Asiatic Society of Bengal exist several 
volumes of manuscripts and drawings by Dr. Buchanan. In two of 
these are one hundred and forty-nine original, coloured deline- 
ations of fish, and 45 copies. On the former are “the specific 
names in Buchanan’s handwriting, marked under the figures, so 
as to leave no doubt or difficulty in referring them to corre- 
sponding descriptions in the Gangetic fishes,” (McClelland.) 
