274 



THE .HUCKIWO YTm* 



colour tliu iisli of the coiuuiuu species was ttu 



naifonu grey or lav^aidiafj wtoi m^n oliitnged 

 to a hsmsmh ^stilbiir; Hie ^ was fotfee^, or 



ratlier creaceiij(i-8lia])ed. Tlie siickmgwj[>tete» 4if 

 an oval form, was situated ou the upper part of 

 the head, and was composed of seventeen trans- 

 verse moveable cartilaginous plates, (but they 

 Vary in fiumBeS', «K3Gdaf^g to ^ tize dt libe 

 fisli,) each armed with minute teeth directed 

 backwards ; from which cause it was difficult to 

 detacli the animal in a direction perpendicular 



%a<fikird3»li| Imt h vm mmmd idth i^«^litj 

 wh&o. imm off in ^ht d^e^^sm of the iiead. 



On inspecting the mouth I obser^-ed two rows 

 of teeth situated on the margin of each jaw, one 

 internal to the other, the outer row being larger 

 and stronger thm the hmt t i^ i^ ptobaH^ 

 that the itEni@riH3^ h intead^ in the j^arK, 

 to replace the front row, lost from time or 



accident. On the palate were also ]>laced two 

 rows of very fiue teeth, and the other parts of 

 the mouth weri^ rough. I made several dried 

 preparatlf^^ the^ head of i^is ish^ ^Mtli 'v^ell 

 displayed the form of the disk ; and, by keeping- 

 the iiioiitli (listcndcd, the rows of teetU conld be 

 distinctly seen and examined. 



The fins are, two pectoral, two ventral, one 



d^sdi ^od &m aaal ; the idiole of wibicji 



