140 Mr. O. Thomas on 
unexpected interest, and the proportion of novelties most 
unusual. This has been mainly due to the fact that so many 
Guianan and Brazilian forms have been presumed, without 
close comparison, to be identical with each other, while now 
Mr. Quelch’s collection shows that although representative of 
each other the species are not as a rule the same. Thanks 
to the invaluable collections of Mr. Alphonse Robert from 
Sao Paulo, I have had for comparison with Mr. Quelch’s 
specimens examples of most of the Brazilian species made, 
like Mr. Quelch’s, in the most approved modern style. 
No less than ten species and subspecies have now had to 
be described as new, and a new genus of bats has also been 
discovered, so that both Mr. McConnell and Mr. Quelch are 
to be congratulated on the highly successful result of the 
latter’s expedition. And even when not new, such excellent 
series of specimens form an addition of the utmost value to 
the Museum Collection. 
1. Myotis, sp. 
Six skins and three spirit-specimens. Upokarit, N. 
Kanuku Mts., 240 feet. December 12, 1900. 
- 2. Rhynchonycteris naso, Wied. 
Six skins. 240 feet. October to December. 
3. Saccopteryx bilineata, Temm. 
Hight skins and three spirit-specimens. 240 feet. October. 
4. Saccopterya leptura, Schreb. 
Two skins and three spirit-specimens. 300 feet. November. 
5. Saccopteryx canina, Temm. 
Five skins and four spirit-specimens. 600 to 2000 feet. 
November and December. 
6. Noctilio leporinus, L. 
One skin. 
7. Noctilio albiventer, Spix. 
Five skins and four spirit-specimens. 
These specimens are all of the yellow-bellied type to 
which the name of JN. affinis was applied by d’Orbigny and 
Gervais. I can find no cranial or other important differences 
between them and the whitish-bellied form of the species. 
