﻿art. 
  24 
  SOUTH 
  AMERICAN 
  SNAKES 
  AMARAL 
  11 
  

  

  The 
  above 
  table 
  shows 
  that 
  the 
  individuals 
  of 
  this 
  species 
  vary 
  very 
  

   much. 
  Therefore, 
  I 
  am 
  inclined 
  to 
  follow 
  Boulenger 
  and 
  regard 
  

   the 
  differences 
  shown 
  by 
  the 
  specimens 
  from 
  the 
  western 
  side 
  of 
  

   South 
  America 
  only 
  as 
  color 
  variations 
  of 
  S. 
  mikanii. 
  

  

  44. 
  DIPSAS 
  INDICA 
  Laurenti 
  

  

  Dipsas 
  indica 
  Laurenti, 
  Syn. 
  Rept., 
  1768, 
  p. 
  90. 
  

  

  Dipsas 
  bucephala 
  Boulenger, 
  Cat. 
  Snakes 
  Brit. 
  Mus., 
  vol. 
  3, 
  1896, 
  p. 
  461. 
  

  

  Peru. 
  — 
  1 
  specimen: 
  No. 
  60734, 
  from 
  the 
  Comberciato 
  River, 
  

   collected 
  by 
  E. 
  Heller. 
  

  

  45. 
  IMANTODES 
  CENCHOA 
  (Linnaeus) 
  

  

  Coluber 
  cenchoa 
  Linnaeus, 
  Syst. 
  Nat., 
  ed. 
  10, 
  vol.1, 
  1758, 
  p. 
  226. 
  

   Imantodes 
  cenchoa 
  Dumeril 
  and 
  Bibron, 
  Erp. 
  G6n., 
  vol. 
  7, 
  1854, 
  p. 
  1065. 
  

   Himantodes 
  cenchoa 
  Boulenger, 
  Cat. 
  Snakes 
  Brit. 
  Mus., 
  vol. 
  3, 
  1896, 
  p. 
  84. 
  

  

  Colombia. 
  — 
  2 
  specimens: 
  No. 
  4300, 
  sent 
  from 
  New 
  Grenada 
  by 
  

   Mr. 
  Schott: 
  1 
  praeocular; 
  2 
  + 
  3 
  postoculars; 
  3 
  + 
  3 
  temporals. 
  No. 
  

   11270, 
  sent 
  from 
  Madina 
  River 
  by 
  Dr. 
  Ruth. 
  

  

  Ecuador. 
  — 
  4 
  specimens: 
  No. 
  14036, 
  collected 
  by 
  Dr. 
  W. 
  H. 
  Jones: 
  

   1 
  praeocular; 
  2 
  postoculars; 
  2+3 
  temporals. 
  No. 
  20614: 
  1 
  praeo- 
  

   cular; 
  2 
  postoculars; 
  2 
  + 
  3 
  temporals; 
  and 
  No. 
  20615: 
  1 
  praeocular; 
  

   3 
  postoculars; 
  3 
  + 
  3 
  temporals, 
  both 
  collected 
  by 
  Mark 
  B. 
  Kerr. 
  

   No. 
  56320 
  from 
  Napo: 
  1 
  praeocular; 
  2 
  postoculars; 
  2 
  + 
  3 
  temporals. 
  

  

  Trinidad. 
  — 
  4 
  specimens: 
  No. 
  14496, 
  collected 
  by 
  A. 
  H. 
  Riise: 
  

   1 
  praeocular; 
  1 
  postocular; 
  2 
  + 
  2/2 
  + 
  1 
  temporals. 
  Nos. 
  14498 
  and 
  

   17499: 
  1 
  praeocular; 
  2 
  postoculars; 
  2 
  + 
  2 
  temporals; 
  and 
  No. 
  17450: 
  

   1 
  praeocular; 
  2 
  postoculars; 
  1+2 
  temporals; 
  all 
  collected 
  by 
  Mr. 
  

   Wayman. 
  

  

  46. 
  LEPTODEIRA 
  ANNULATA 
  (Linnaeus) 
  

  

  Coluber 
  annulatus 
  Linnaeus, 
  Syst. 
  Nat., 
  ed. 
  10, 
  vol. 
  1, 
  1758, 
  p. 
  224. 
  

   Coluber 
  albofuscus 
  Lacepede, 
  Hist. 
  Nat. 
  Serp., 
  vol. 
  2, 
  1789, 
  p. 
  94. 
  

   Leptodeira 
  annulata 
  Guenther, 
  Cat. 
  Colubr. 
  Snakes 
  Brit. 
  Mus., 
  1858, 
  p. 
  166. 
  

   Leptodeira 
  albofusca 
  Guenther, 
  Cat. 
  Colubr. 
  Snakes 
  Brit. 
  Mus., 
  1858, 
  p. 
  166. 
  

   Leptodira 
  annulata 
  Boulenger, 
  Cat. 
  Snakes 
  Brit. 
  Mus., 
  vol. 
  3, 
  1896, 
  p. 
  97. 
  

   Leptodira 
  albofusca 
  Boulenger, 
  Cat. 
  Snakes 
  Brit. 
  Mus., 
  vol. 
  3, 
  1896, 
  p. 
  95. 
  

   Leptodeira 
  annidata 
  Griffin, 
  Ann. 
  Carnegie 
  Mus., 
  vol. 
  11, 
  1917, 
  p. 
  321. 
  

  

  Panama.— 
  8 
  specimens: 
  Nos. 
  54160, 
  54161, 
  54077, 
  54078, 
  53829, 
  

   54227, 
  45567, 
  and 
  54266. 
  

  

  Colombia. 
  — 
  2 
  specimens: 
  No. 
  11272 
  collected 
  at 
  Madina 
  (?) 
  River 
  

   by 
  Dr. 
  Ruth. 
  No. 
  32277, 
  collected 
  at 
  Truando 
  (?). 
  

  

  Ecuador. 
  — 
  1 
  specimen: 
  No. 
  22444, 
  collected 
  by 
  Mark 
  B. 
  Kerr. 
  

  

  Peru. 
  — 
  2 
  specimens: 
  Nos. 
  28295 
  and 
  28296, 
  sent 
  from 
  Ignitas 
  by 
  

   Mr. 
  Carter. 
  

  

  Dutch 
  Guiana.— 
  8 
  specimens: 
  Nos. 
  11149, 
  11154, 
  11156, 
  11158, 
  

   11160, 
  11161, 
  11162, 
  and 
  12549; 
  all 
  collected 
  by 
  C. 
  J. 
  Hering. 
  

  

  