120 On a new Specks of Siren', 



Defcription of the Inguana, called Mud Inguana hy the Ame- 

 ricans, Siren laCertina by Linmcus, and MuiFsena Siren by 

 Gvielin, 



Head flat at top, rounded at the nofe, eyes fmall, noftrils 

 fmall and placed near the end of the fnout, which is fome- 

 times marked with a brown fpot ; colour cheflnut : (Plate IV.) 

 fig. I. ABCD. 



Mouth furnifhed with a row of fmall teeth : fig. 3. Auri- 

 cular hole nearly in the form of afemicircle, furnifhed on the 

 exterior with three fhort, thick, fringed lobes, adhering to 

 three ferrated rays on the interior with opercular fig. i. E. 



Only two fliort fore-feet, each furniflied with four toes, 

 terminated each by a fmall (harp nail : fig. i. F. 



Body nearly round, fhrunk, and flreaked on the fides, 

 covered with fmall fcales thinly fpread and faintly feen: 

 %. I. G. 



Tail flat, furnifhed both above and below with ^ fimple 

 niembran'b, without either points or prickles : fig. 1. H. 



Drfcriptlon of a neiu Animal found in' a' Swamp in Jerfef 



liear the Delaware, ?iot very diJJantfroni the Middle Ferry 



oppofte the City of Philadelphia. 



Head flat, rounded at. its extremity; eyes and noftrils as 

 in the forriier, except that the latter arc. rather nearer toge- 

 ther: fig. 3. ABCD. 



Mouth large, extending farther back than the eyes, fur- 

 niflied 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 : 



l)ndcr the head two opercula united, forming but one 

 piece: fig. 4. Four feet, thofe before furniflied .with four 

 toes, thofe behind, with five. I prefume they were furnifhed 

 with nails; .the animal being preferved in fpirits of wine has 

 been fomewhat changed in its parts: fig. 3". I. 



B.ody fomewhat flattened, flreakcd on the fideS, flattefl: 

 above and belmv, which gives it a fquare appearance : 



h- 3- G. 



4 lail 



