﻿28 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  67 
  

  

  Total 
  length— 
  1450 
  mm. 
  14 
  ; 
  tail 
  100 
  mm. 
  

  

  Found 
  in 
  Tropical 
  South 
  America: 
  Trinidad, 
  Venezuela, 
  Guianas, 
  

   Ecuador, 
  Bolivia, 
  Peru, 
  N. 
  Paraguay, 
  N. 
  Argentina 
  15 
  , 
  and 
  especially 
  

   in 
  Brazil, 
  where, 
  however, 
  it 
  never 
  occurs 
  in 
  the 
  south 
  beyond 
  the 
  

   State 
  of 
  Sao 
  Paulo. 
  

  

  88. 
  BOTHROPS 
  ATROX 
  (Linnaeus) 
  

  

  Coluber 
  atrox 
  Linnaeus, 
  Syst. 
  Nat., 
  ed. 
  10, 
  vol. 
  1, 
  1758, 
  p. 
  222. 
  

   Lachesis 
  lanceolatus 
  Boulenger, 
  Cat. 
  Snakes 
  Brit. 
  Mus., 
  vol. 
  3, 
  1896, 
  p. 
  

   535 
  (in 
  part). 
  — 
  Brazil, 
  La 
  Defence 
  contre 
  l'Ophidisme, 
  1914, 
  p. 
  84 
  (part). 
  

   Lachesis 
  atrox 
  Boulenger, 
  p. 
  537 
  (part). 
  — 
  Brazil, 
  La 
  Defence 
  contre 
  

  

  l'Ophidisme, 
  1914, 
  p. 
  84. 
  — 
  Amaral, 
  Ann. 
  Mem. 
  Inst. 
  Butantan, 
  vol. 
  

  

  1, 
  pt. 
  1, 
  1921, 
  pp. 
  34 
  and 
  78. 
  

   Bothrops 
  atrox 
  Amaral, 
  Copeia, 
  No. 
  126, 
  1924, 
  p. 
  19; 
  Rev. 
  Mus. 
  Paulista, 
  

  

  vol. 
  14, 
  1924, 
  p. 
  39. 
  

  

  Panama.— 
  3 
  specimens. 
  

  

  Colombia. 
  — 
  1 
  specimen. 
  

  

  Ecuador. 
  — 
  A 
  large 
  series 
  of 
  specimens 
  all 
  having 
  short 
  and 
  high 
  

   keels 
  on 
  the 
  scales. 
  

  

  Peru. 
  — 
  1 
  specimen. 
  

  

  Martinique. 
  — 
  5 
  specimens. 
  

  

  Santa 
  Lucia. 
  — 
  4 
  specimens. 
  

  

  Tobago. 
  — 
  2 
  specimens. 
  

  

  Trinidad. 
  — 
  5 
  specimens. 
  

  

  French 
  Guiana. 
  — 
  1 
  specimen. 
  

  

  Brazil. 
  — 
  5 
  specimens. 
  

  

  Paraguay 
  (accidentally).— 
  1 
  specimen. 
  

  

  All 
  these 
  specimens 
  will 
  be 
  referred 
  to 
  in 
  a 
  more 
  elaborate 
  report 
  

   I 
  am 
  at 
  present 
  writing 
  on 
  the 
  differences 
  between 
  the 
  3 
  species 
  of 
  

   Neotropical 
  Crotalidae, 
  B. 
  atrox 
  (Linnaeus, 
  1758), 
  B. 
  jararaca 
  

   (Wied, 
  1824) 
  and 
  B. 
  jararacussu 
  Lacerda, 
  1884. 
  

  

  89. 
  BOTHROPS 
  JARARACA 
  (Wied) 
  

  

  Cophias 
  jararaca 
  Wied, 
  Isis, 
  1824, 
  pt. 
  2, 
  p. 
  1103; 
  Abbild. 
  Naturg. 
  Brasil., 
  

  

  1824, 
  p. 
  7. 
  

   Lachesis 
  lanceolatus 
  Boulenger, 
  Cat. 
  Snakes 
  Brit. 
  Mus., 
  vol. 
  3, 
  1896, 
  p. 
  

  

  535 
  (part). 
  

   Lachesis 
  jararaca 
  Amaral, 
  Ann. 
  Mem. 
  Inst. 
  Butantan, 
  vol. 
  1, 
  pt. 
  1, 
  1921, 
  

  

  p. 
  34. 
  

   Bothrops 
  jararaca 
  Amaral, 
  Copeia, 
  vol. 
  126, 
  1924, 
  pp. 
  19 
  and 
  78. 
  

  

  Brazil.— 
  1 
  specimen, 
  No. 
  40216 
  collected 
  in 
  Santa 
  Catharina 
  by 
  

   Mr. 
  Ehrhardt. 
  

  

  11 
  Specimen 
  No. 
  1308 
  Inst. 
  Butantan, 
  sent 
  alive, 
  from 
  the 
  locality 
  Ventania, 
  State 
  of 
  S. 
  Paulo, 
  in 
  July, 
  

   1917, 
  by 
  Goncalvcs 
  de 
  Freitas. 
  

  

  18 
  Scrie 
  in 
  his 
  "Catalogo 
  dc 
  los 
  Ofidios 
  Argentinos" 
  states 
  that 
  this 
  species 
  is 
  found 
  from 
  the 
  Rio 
  Negro 
  

   and 
  Centra] 
  Pampa 
  to 
  the 
  North. 
  

  

  