<2o6 APPENDIX. 



The general fize of the Ceraftes, from the extremity of its 

 fnout to the end of its tail, is from 13 to 14 inches. Its 

 head is triangular, very flat, but higher near where it joins 

 the neck than towards the nofe. The length of its head, 

 from the point of the nofe to the joining of the neck, is 

 ~Tths of an inch, and the breadth rVhs. Between its horns 

 is -Vths. The opening of its mouth, or rictus oris - 8 T ths. 

 Its horns in length T 3 T ths. Its large canine teeth fomething 

 more than T Vths and \. Its neck at the joining of the head 

 Aths. The body where thickelt TTths. Its tail at the joining 

 of the body - 2 T ths and \. The tip of the tail T Vth. The 

 length of the tail one inch and -Vths. The aperture of the 

 eye T 2 T ths, but this varies apparently according to the im- 

 preffion of light. 



~ M' 



1 



The Ceraftes has fixteen fmall immoveable teeth, and in 

 the upper jaw two canine teeth, hollow, crooked inward, 

 and of a remarkable fine poliih, white in colour, inclining 

 to blueifh. Near one fourth of the bottom is ftrongly fixed 

 in the upper jaw, and folds back like a clafp knife, the point 

 inclining inwards, and the greateft part of the tooth is 

 covered with a green foft membrane, not drawn tight, but as 

 it were wrinkled over it. Immediately above this is a flit 

 along the back of the tooth, which ends nearly in the mid- 

 dle of it, where the tooth curves inwardly. From this aper- 

 ture I apprehend that it flieds its poifon, not from the point, 

 where -with the bell glaffes I never could perceive an aper- 

 ture, fo that the tooth is not a tube, but hollow only half 

 way y the point being for making the incifion, and by its 

 prefliire occasioning the venom in the bag at the bottom of 

 the fang to rife in the tooth, and fpill itfelf through the flit 

 into the wounds 



Br 



