﻿Smithsonian 
  Report, 
  1943. 
  — 
  Cochran 
  

  

  PLATE 
  20 
  

  

  1. 
  Anaconda 
  (Eunectes 
  sp.). 
  Color: 
  olive 
  with 
  two 
  rows 
  of 
  large 
  black 
  spots 
  on 
  back, 
  and 
  smaller 
  ones, 
  

   often 
  with 
  yellowish 
  or 
  orange 
  centers, 
  toward 
  the 
  belly; 
  orange 
  dark-bordered 
  streak 
  on 
  side 
  of 
  head. 
  

   Length: 
  possibly 
  over 
  30 
  feet. 
  Range: 
  Ouianas, 
  Brazil, 
  and 
  Peru. 
  Constricts 
  and 
  crushes 
  its 
  victim; 
  

   jaws 
  with 
  long, 
  backward-slanting 
  teeth 
  to 
  hold 
  prey. 
  (Courtesy 
  Philadelphia 
  Zoological 
  Society.) 
  

  

  2. 
  Boa 
  (Constrictor 
  constrictor 
  subsp.). 
  Color: 
  pale 
  tan 
  or 
  yellow 
  to 
  reddish 
  brown, 
  with 
  dark 
  brown 
  

   saddles 
  often 
  enclosing 
  lighter 
  markings; 
  scales 
  highly 
  iridescent. 
  Length; 
  about 
  13 
  feet. 
  Range: 
  Mexico 
  to 
  

   the 
  Argentine 
  (in 
  several 
  varieties). 
  Constricting 
  and 
  biting. 
  (Courtesy 
  Philadelphia 
  Zooloicgal 
  Society.) 
  

  

  