On a new species of SIREN. 279 



Only two fhort fore feet, each furninied with four toes 

 terminated each by a fmall fliarp nail, fig. i. F. 



Body nearly round, Jhrunk, and ftreaked on the fides, 

 covered with fmali fcales thinly fprcad and faintly feen, 

 fig. ._. G. 



Tail flat, furnifhed both above and below with a fimple 

 membrane, without eitl.er points or prickles, fig. i. PL 



Defcriptlon of a New An'imJ, found in a Szuamp in fcrfey near 

 the Delaiuare, not very dijt ant from the Middle Ferry oppofite 

 the City of Philadelphia. 



HEAD flat, rounded at its extremity, eyes and nuf- 

 trils as in the former, except that the latter are rather 

 nearer together, fig. 3. A B C D. 



Mouth large, extending further back than the eyes, 

 furniihed with a row of fmall teeth as in the former, 

 fig. 3. E. 



Auricular hole large, bordered on the upper part by 

 three fliarp fringed lobes, adhering at one end to three 

 ferrated rays placed in the interior and of which they are 

 a continuation, fig. 3. F. 



Under-the head two opercula united, forming but one 

 piece, fig. 4. Four feet, thofe before furniflicd with four 

 toes, thofe behind with five. I prefume they v^^ere fur- 

 niflied with nails, the animal being preferved in fpirits 

 of wine has been fomewhat changed in its parts, 



fig. 3- T- 



Body fomewhat flattened, flreaked on the fides, flat- 

 teil above and below ; which gives it a fquare appearance, 

 fig. 3. G. 



Tail flat, furnifhed on the top with a fimple membrane, 

 which commences nearly at the neck, and extends itfelf 

 under the tail as far as the anus, fig. 3. H. 



O o 2 Mr. 



