386 Prof. Reinhardt on Emballonura canina. 
in this genus may be only a sexual distinction ; but this is dis- 
proved by an examination of the British species, where the pecu- 
liar form of each is constant in all the individuals that have beion 
examined. 
Before quitting the subject of Kedlia rubra I wish to take the 
opportunity of mentioning that Dr. Turton was the first to point 
out the viviparous character of this species, which he announced 
in his ‘ British Bivalves,’ p. 258, twenty-seven years ago. 
I am, dear Sir, yours very truly, 
JosHuA ALDER. 
XLII.—Deseription of a bag-shaped, glandular apparatus on a 
Brazilian Bat, the Emballonura canina of Pr. Maximilian. By 
J.T. Rernuarpr. 
Dvrine a recent sojourn in the Brazils I collected, in the inte- 
rior of Minas Geraés, numerous specimens of a small species of 
bat (the Emballonura canina, Pr. Maxim.) which is there very 
common, and which attracted my particular attention from the 
fact of its having its wings provided with a small bag-like ap- 
pendage similar to that noticed by Mr. J. FE. Gray* and by Pro- 
fessor Krauss} in the species of Saccopteryx. 
On my return to Europe, I saw, from the annual report of the 
natural history of the Mammalia for the year 1846 by Professor 
A. Wagner t, that this organ had already been discovered on the 
very same species of bat by the late Dr. Natterer, and that the 
learned Professor had published drawings of it in his ¢ Beitrige 
gar Kenntniss der Satigethiere von America,’ published m the 
‘ Abhandlungen der Konigl. Bayerischen Academie der Wissen- 
schaften, Vr Band, 1s*e Abth. 1847, 
Two figures (Joc. cit. tab. 4. figs. 6 & 7) being all that is‘to be 
found in the above-named work, there being no description in 
the text, I have thought it right to publish my observations con- 
cerning this organ, which are founded on the examination of a 
large number of specimens, both alive and immediately after 
death. 
On examining in the Emballonura canina, that part of the 
alar membrane which extends to the thumb, along the fore-edge 
of the upper and lower arm, we find on the back a fissure lead- 
ing to a small cavity in the interior of the membrane, in which 
is secreted a reddish, greasy matter, of a strong, somewhat 
ammoniacal’ smell.” "The aperture is at a distance of about 
3 lines from the insertion of the alar membrane on the back: the 
* Ann. and Mag. of Natural History, vol. xvi. p. 279. 
+ Erichson’s Archiv fiir Naturgeschichte, Band 1. p. 178. t. 6. 
{ Erichson’s Archiv, 1847, B. 2. p. 13. 
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