268 CLASS REPTILIA. 



There are some whose subcaudal plates are sim- 

 ple, as in the crotali, and whose head is furnished 

 with plates as far as behind the eyes. Their tail is 

 terminated by a sting.* 



Such is, 



The Brown J^iper of Carolina. ( Coluh. Tisiphone, 

 Shaw. Catesb. II. xliii., and xliv.) 



Brown, with cloudy spots of a deeper brown. 



Others have the subcaudal scales double, and the 

 head furnished with scales similar to those of the 

 back. I 



Such is, among others, 



The Yellow Trigonocephalus ; Yellow Serpent of the 

 Antilles; Vipere Fer-de-lance, Lacep. II. v. 1. 

 ( Trig. Lanceolatus,^ Opp.t 



The most dangerous reptile of our sugar islands. 

 It is yellowish or grayish, more or less varied with 

 brownish, and attains to six or seven feet in length. 

 It lives in cane plantations, and subsists chiefly on 

 rats. It causes many fatal accidents to the negroes. || 



* These are the Tisiphone of Fitzinger. 



■\ Craspedocepiialus, Fitzinger. All the Bothrops of Spix belong to it. 



X This species also inhabits Brazil, and doubtless other parts of the 

 continent of South America. I would even believe that it is the one 

 which Spix names Sourancou, pi. xxiii., and regards as the Crotalus 

 Mutus, or Lachesis. 



II Here comes the Trimesure Vert, of Lacepede. An. Mus, IV. Ivi. 2, or 



