68 Dr; Mitchill on the Proteus of Lake Erie. 
Under the genus so modified and framed with logical pre- 
cision, the following species seem, at least, as far as I can 
comprehend them, to be capable of easy and natural dispo- 
sition, to wit: 
Species 1. The Proteus of New-Jersey ; with a whitish 
body ; invisible nostrils; posterior feet five toed, anterior 
four toed. Described by Professor Green in the Journal 
of the Philadelphia Academy of Natural Sciences, as the 
P. Neo- Cesariensis, vol. 1.No. 13; and followed by the re- 
marks of l'h. Say, in No. 14. Seems to be the same that 
was described and figured in Philad. Philosoph. Trans. vol. 
4, as the Operculated Siren. 
Species 2. The Proteus of the Alleghany river, with a 
black fillet passing from the nostrils through the eyes, dilat- 
ing over the sides and becoming obsolete on the tail. Seems 
to be the Triton Lateralis of Say ; and the animal descri- 
bed by Dr. Edwin James in his account of major Long’s 
expedition to the rocky mountains vol. i. p- 4-7, with a dis- 
section by Professor Harlan. I refer to that instructive 
note for the particulars. We must by further observation 
determine whether the Lake Champlain reptile of Schnei- 
i here. 
» or where 
pecies 3. The Proteus of the Lakes,—with spot 
skin, flabby lips ; a duplicature of skin under the throat; large 
fleshy head ; and broad flattish snout. This animal is men- 
tioned by Barton as before quoted, for the huge or gigantie 
Salamander; in which Cuvier bas followed him. Des- 
cribed in my paper printed in the Amer. Journ. of Sci. as 
herein mentioned. 
To render the subject as plain as possible and to prevent 
all difficulty in identifying the animal I mean, I annex draw- 
ings of his external form, executed by Issachar Cozzens, 
Jun. from nature. Fig. 1. Pl. 2. represents him as seen by 0 
bird’s eye view, on the bottom of a Lake or River. F ig 
2, exhibits him as beheld in a side view, after being raised 
tom the water. And that another view may be given I add 
a third figure thereof, (Fig. 3,) as delineated by John Neil- 
son, Jun. M. D. during the display of the individual which 
urgeon Delavan of the U.S. army brought me afew days 
im. Governor Cass of Michigan, who informs me they 
are Commonin Detroit river. In the dissection I was as 
sisted by James E. Dekay, M. D. Corresponding Secretary, 
