Miscellaneous. 427 
The writer examined the Lost-Creek Cave for a distance, stated 
to have been measured, of nearly two miles from the mouth ; and je 
statement is probably correct, judging by the time occupied in 
ing through to the point reached. A creek of a BER PRA size 
issues from the cave; near the mouth it is dammed; and a race 
leads the water for a short distance to a corn-mill on the banks of 
The passage is wide, dry, and with so few irregularities that a 
publie road might be readily ped in it to that point. I could not 
find any fishes; just outside the mouth a small Uranidea is not 
uncommon. The dam within the cave abounds in dead Jos, Uniones, 
&c., said to be carried there by floods of the Holston, but quite as 
probably the refuse of the Fine of Indians. Bones of Indians, 
turkeys, and game animals are to be found at the mouth of the 
cave, which is in a bluff some fifty. feet above dio level of the river. 
= one side of the entrance a hard limestone deposit contains char- 
, Uniones, and Melanie. The limestone cliff produced abun- 
ped of Asplenium montanum, Pellea nghi onec and a delicate 
bipinnate JPteris.— From the Trans. Amer. . Soc. May 1870. 
Communicated by the Author. 
Note on the Ta pe -i fren 
Dr. J. E. Gra 
Mr. Moore has kindly sent me a bad specimen of Halerosia nigra 
from the river Bonny, in West Africa, presented to the British 
Museum by Dr. Forsyth, of 18 Saxon Street, Liverpool It is the 
only fresh and the most adult specimen of the species I have seen, 
and is nearly 4 feet long. It is interesting as making me more cer- 
tain that Iam are in identifying it with the ** Krocodile noir du 
Niger" of Adan 
The whole sray is black both above and below; the belly has 
a brownish tinge, very slightly and obscurely dotted with white. 
The nuchal shields are very thick, Phos an upright outer edge. 
raed emn has been described as a new species by Mr. Andrew 
Murray and Mr. Cope, and was merde by Cuvier with the 
Pu tasked alligator (Caiman trigonatus) of South America. 
Note on Hyperoodon latifrons a 
in the ee Museum at rcl Eschricht — that 
. latifrons was established on a very old male of the n H. 
rostratus; but Gray's species must now be regarded mre 
blished.” 
