﻿PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  

  

  vol. 
  67 
  

  

  16. 
  CHIRONIUS 
  CARINATUS 
  (Linnaeus) 
  

  

  Coluber 
  carinatus 
  Linnaeus, 
  Syst. 
  Nat., 
  ed. 
  10, 
  vol. 
  1, 
  1758, 
  p. 
  223. 
  

   Chironius 
  carinatus 
  Fitzinger, 
  Neue 
  Classif. 
  Rept., 
  1826, 
  pp. 
  29, 
  31, 
  and 
  60. 
  

   Erpetodryas 
  carinatus 
  Boie, 
  Isis, 
  1827, 
  p. 
  548. 
  

   Herpetodryas 
  carinatus 
  Boulenger, 
  Cat. 
  Snakes 
  Brit. 
  Mus., 
  vol. 
  2, 
  1894, 
  

  

  p. 
  73. 
  

   Chironius 
  carinatus 
  Ruthven, 
  Misc. 
  Publ., 
  Univ. 
  Michigan 
  Mus. 
  Zool., 
  

  

  vol. 
  8, 
  1922, 
  p. 
  65. 
  

  

  Dutch 
  Guiana. 
  — 
  2 
  specimens, 
  Nos. 
  11313 
  and 
  12547, 
  collected 
  by 
  

   C. 
  J. 
  Hering. 
  

  

  Brazil. 
  — 
  2 
  specimens, 
  No. 
  28947, 
  collected 
  by 
  Mr. 
  Steere, 
  and 
  

   No. 
  40217, 
  collected 
  in 
  Santa 
  Catharina, 
  by 
  Mr. 
  Ehrhardt.; 
  

  

  Paraguay. 
  — 
  1 
  specimen, 
  No. 
  12402, 
  collected 
  by 
  the 
  Paraguay 
  

   Expedition. 
  

  

  17. 
  CHIRONIUS 
  VICINUS 
  (Boulenger) 
  

  

  Herpetodryas 
  vicinus 
  Boulenger, 
  Proc. 
  Zool. 
  Soc. 
  London, 
  1915, 
  p. 
  660. 
  

   (Type 
  from 
  Anda 
  Goya, 
  So. 
  Colombia). 
  

  

  Ecuador. 
  — 
  4 
  specimens, 
  as 
  follows 
  : 
  

  

  The 
  dorsal 
  scales 
  are 
  all 
  smooth 
  in 
  Nos. 
  20619 
  and 
  32044 
  (young 
  

   specimens), 
  the 
  vertebral 
  pair 
  is 
  faintly 
  keeled 
  in 
  No. 
  20621 
  and 
  in 
  

   No. 
  20620 
  (old 
  specimen) 
  all 
  scales 
  are 
  faintly 
  keeled 
  but 
  the 
  outer 
  

   row 
  which 
  is 
  smooth 
  and 
  the 
  vertebral 
  pair 
  which 
  is 
  strongly 
  keeled. 
  

  

  The 
  ventrals 
  are 
  feebly 
  angulate 
  laterally 
  in 
  all 
  specimens. 
  Color- 
  

   ation 
  as 
  in 
  the 
  type, 
  but 
  in 
  No. 
  20619 
  there 
  are 
  no 
  spots 
  or 
  streaks 
  

   along 
  the 
  vertebral 
  line, 
  and 
  no 
  dark 
  streak 
  under 
  the 
  tail. 
  Nos. 
  

   20620 
  and 
  20621 
  show 
  a 
  tendency 
  to 
  be 
  unicolor, 
  reddish 
  or 
  dark 
  

   brown, 
  only 
  slightly 
  blotched 
  on 
  the 
  sides, 
  with 
  traces 
  of 
  a 
  dark 
  

   streak 
  behind 
  the 
  eye, 
  dark 
  yellow 
  beneath 
  anteriorly 
  with 
  irregular 
  

   blackish 
  blotches 
  on 
  the 
  sides, 
  posteriorly 
  dark 
  brown. 
  

  

  18. 
  LEPTOPHIS 
  AHAETULLA 
  (Linnaeus) 
  

  

  Coluber 
  ahaelulla 
  Linnaeus, 
  Syst. 
  Nat., 
  ed. 
  10, 
  vol. 
  1, 
  1758, 
  p. 
  225. 
  

  

  Leptophis 
  liocercus 
  Jan, 
  Icon. 
  Ophid., 
  pt. 
  49, 
  1879, 
  pi. 
  6, 
  fig. 
  1. 
  — 
  Bou- 
  

   lenger, 
  Cat. 
  Snakes 
  Brit. 
  Mus., 
  vol. 
  2, 
  1894, 
  p. 
  113. 
  

  

  Leptophis 
  ahaetulla 
  Loennberg, 
  Bih. 
  Svenska 
  Vet. 
  Akad. 
  Handl., 
  vol. 
  22, 
  

   1896, 
  sec. 
  4, 
  no. 
  1, 
  p. 
  6.- 
  — 
  Andersson, 
  Bih. 
  Svenska 
  Vet. 
  -Akad. 
  Handl., 
  

   vol. 
  24, 
  1899, 
  sec. 
  4, 
  no. 
  6, 
  p. 
  22. 
  

  

  Dutch 
  Guiana. 
  — 
  2 
  specimens, 
  No. 
  6116, 
  collected 
  by 
  C. 
  J. 
  Hering. 
  

  

  