20 LECTURE VII. 



guished both from the green and the true tortoise^ 

 shell turtle or Hawksbill by the more numerous 

 divisions of the shell, which amount to fifteen in-r 

 stead of thirteen, which is the constant number 

 in the rest. The Loggerhead Turtle is a very 

 strong and fierce animal, and is even dangerous - y 

 defending itself with great vigour with its legs, 

 and being able to break the strongest substances 

 with its mouth. Aldrovandus tells us that on 

 offering a thick walking-stick to one which he 

 saw publicly exhibited at Bologna, the animal 

 bit it in two in an instant. 



The T. imbricata, the Hawksbill, or imbri- 

 cated Turtle, is the species which affords the ele- 

 gant substance commonly known by the name 

 of Tortoise-shell, and of which such innumerable 

 ornamental articles are prepared. This species 

 of Turtle is called the imbricated Turtle, from 

 the disposition of its scales, which lap over each 

 other at the tips in the manner of tiles on a 

 house, and by this particularity a? well as by the 

 number of its scales, which are always thirteen, 

 it may be distinguished from the Loggerhead 

 Turtle, in which the number is fifteen, The 

 shape of the bill also, which is sharper a.nd more 



