2 70 SNAKES. 



of science : that is, they belong to the sub-order Viperina, 

 though their dentition more than any other feature separates 

 them from the rest, and we know now that several non- 

 venomous snakes produce live young as well as the vipers. 



In appearance the rattlesnake is so well known that a 

 minute description of it is uncalled for. Throughout the 

 whole genera of the CrotalidcB the viperine character is seen 

 in the broad, angular, flattish head ; the thinner neck, distinct 

 between it and the thicker body; a short, tapering tail, 

 and a generally repulsive appearance with an evil expression 

 about it, as if no further warning were required to announce 

 its deadly qualities. 



Nevertheless, many of the rattlesnakes possess an un- 

 deniably handsome exterior. Their colours are for the most 

 part dark and rich, relieved with lighter markings and 

 velvety black ; often wearing a brilliant prismatic hue, which 

 still further enriches their tints. And then the rattle at 

 once announces the name of its owner. 



It is not easy to decide on the writer or traveller from 

 whom we get the first mention of the rattlesnake, which has 

 an extensive geographical range on both the American con- 

 tinents. It was undoubtedly some South American explorer 

 early in the sixteenth century, and long before any settlement 

 in the New World had been made by the English. 



In a rare old book, the first edition of which was published 

 in London, 1614, viz. ' Samvel Piirchas. His Pilgi^image in 

 all Ages ; being an account of all the Places discoiiered since 

 the Creation of the Worldl we hear of many Spanish and 

 Portuguese authors who are but little known in England, 

 and from each and all of whom the indefatigable ' Pilgrim ' 



