Class IV. T H O R N B A C K. 93 



Mouth fmall: teeth minute, fpicular. 



Five openings to the gills, as in others of this 

 genus. 



The fkin every where fmooth : cinereous brown 

 above; white beneath. 



** With blunt Teeth, 



La Raye bouclee. Bekn 70. Raia clavata. Lin.JyJf. 297. 37* Thors- 

 Raia clavata. Rondel. 353. Gronov. Zoopb. No. 154. back. 



Gefner pifc. 795. R. aculeata dentibus tubercu- 

 Steinroch. Sbone<veIde y 59. loiis, cartilagine tranfverfa 



TJiornback. Wil. lab, 74. abdominali. Arted. Jynon.g^, 



Rail fyn. pifc* 26. Racka. Faun. Suec. No. 293. 



THIS common fifh is eafily diftinguiilied from 

 the others by the rows of ftrong fharp fpines, 

 difpofed along the back and tail. In a large one 

 we faw, were three rows on the back, and five on 

 the tail, all inclining rewards its end. 



On the nofe, and on the inner fide of the fore- 

 head, near the eyes, were a few fpines, and others 

 were fcattered without any order on the upper part 

 of the pectoral fins. 



The mouth was fmall, and filled with granulated 

 teeth. 



The upper part of the body was of a pale afh 

 color, marked with fhort ftreaks of black, and the 

 {kin rough, with fmall tubercles like fhagreen. 



The 



