183 



prominent, with the upper mandible curved over 

 the lower; two claws on each foot; plates of 

 the disk imbricated, thirteen in number, rather 

 square, semi-transparent, variegated ; of the 

 circumference twenty- five, pointed, and incum- 

 bent on each other in a serrated manner ; tail a 

 mere notch."* 



General length from the tip of the bill to the 

 end of the shell, about three feet; has been 

 known to measure five feet. 



* Turton's " Brit. Fauna," p. 78 



