126 GENERA AND SPECIES OF THE RATTLESNAKES. 



III. 



The descriptions of the following supposed species do not coincide with those 

 of any species known to modern naturalists : — 



Crotalus dryinus: Linnjeus, Sjst. Nat., I, 312 (ITGC). Quoted by Graelin, Laccpede, Bonnaterre, 



Daudin, Merrem. 

 Crotalus liorridus: Boddaert, Nova Acta, VII, IG (1783). Quoted by Gmelin, Le Conte. 



The following names refer to species which I cannot identif)' with, or distinguish 

 from known species either on account of want of specimens, imperfect descriptions, 

 or references which cannot be unravelled. 



Crotalus adamanleus : Jan, Rev. et Mag. Zool., 18.59, p. 153. 



Crotalus atricaudatus : Merrem, Syst. Ampliib., 157. 



Crotalus cumanensis: Humboldt, Humb. et Bonpl. Recueil d'Observ., p. G (1833). 



Crotalus durissus: Boddaert, 1. c. Merrem, 1. c. 



" " var. a Gmelin, Syst. Nat., I, 1081 (1788). 



Crotalus exalbidus : Boddaert, 1. c. 



Crotalus horridus: Jan, Rev. et Mag. Zool, 1859, 153. 



Crotalus rhombifer: Merrem, 1. c. 



Caudisona orienialis: Laurenti, Synops., p. 94 (11 G8). = Crotalus strejntavs Daud., V, 318 (1802). 

 " Said to be Boa canina." Gray, Synopsis Rept., p. 78. 



Caudisona Gronomi: Latjrenti, 1. c. Perhaps Lachesis mutus, Daud. 



Uroj^sophus triseriatus: Wagler, Nat. Syst. Amph., p. 17G (1830). Gray, Cat. Brit. Mus., p. 116. 

 Perhaps Caudisona lucifer. Prof. Jan. Iconogr. descr. Ophid., p. 29, places this species in Cro- 

 talus ( Crotaloiiliorus) ! 



CrolalopJwrus co7isors: Baird and Girard, 1. c. Baird, U. S. and Me.x. Bound. Surv. Reptiles, p. 15. 

 Ibid. TJ. S. Pac. R. R. Expl. Rep., X, Repl., pi. .xxiv, f. 7. 



The following supposed species, according to Boie, Isis, 1827, 562, is TropiJo- 

 notus quincunciaius with a crepitaculum of a Rattlesnake attached : — 

 Crotalus tessellat us: Hermann, Observat. Zool., p. 271 (1804). 



The following species are not Rattlesnakes: — 



Crotalus mutus: Linn^us, 1. c. p. 373 et Gmelin, is Lachesis mutus, Daud. 



Crotalus piscivorus : Lacepede, I. c. p. 424 (1789)= C. aqualicus, Bounat. 1. c. p. 3 (1790), is Ancis- 

 trodon piscivorus, nobis. 



