( «3 ) J 



It is faid that there are three kinds ^ Ci ^J, 

 ^Imphijbcena, or Double-headed Snakes, c^Ayp^ 



in Guiana, though I have never had 

 an opportunity of feeing but one kind, 

 which is the fmalleft of the three. The 

 form of this Snake is exa&ly cylindrical 

 from end to end. It is about twelve 

 inches in length, and about as large as 

 the ftem of a common tobacco-pipe, be- 

 ing of a dull blue colour. Its fcales are fo 

 thin and fmall, that a fuperficial obferver 

 would think it covered only with ikim 

 Jts eyes are fo fmall, that they are not 

 readily difcovered, and the Snake is, com- 

 monly reputed blipd. Both ends of the 

 Snake have the fame external appear- 

 ance, from whence it has been thought 

 to have two heads, thq' ojily one mouth 

 is difcoverable, which is fmall, and 

 ^rmed with very fine {harp teeth, almoft 

 obfcured by the gums, and which are 

 ealier felt with a probe, or piece of 

 Wood, than feen. The bite of this 

 P 3 Snake 



