﻿22 
  Mr. 
  G. 
  A. 
  Boulenger 
  on 
  new 
  Reptiles 
  

  

  6. 
  $. 
  

  

  mm. 
  mm. 
  

  

  Total 
  length 
  (tail 
  reproduced) 
  .... 
  105 
  115 
  

  

  Head 
  12 
  15 
  

  

  Width 
  of 
  head 
  7 
  9 
  

  

  Body 
  2S 
  40 
  

  

  Fore 
  limb 
  17 
  25 
  

  

  Hind 
  limb 
  32 
  47 
  

  

  Tibia 
  12 
  15 
  

  

  A 
  female 
  from 
  Novita, 
  Rio 
  Tamana, 
  Choco, 
  S.W. 
  Colombia, 
  

   150-200 
  feet, 
  and 
  two 
  young 
  males 
  from 
  Condoto, 
  in 
  the 
  

   same 
  district, 
  150 
  feet, 
  collected 
  by 
  Mr. 
  M. 
  G. 
  Palmer. 
  

  

  Allied 
  to 
  A. 
  poecilopus, 
  Cope, 
  and 
  notopholis, 
  Blgr., 
  also 
  

   from 
  Colombia. 
  

  

  Sienocercus 
  boettgeri. 
  

  

  No 
  pterygoid 
  teeth. 
  Anterior 
  border 
  of 
  ear 
  with 
  four 
  or 
  

   five 
  conical 
  scales 
  forming 
  a 
  denticulation. 
  Middle 
  supra- 
  

   ocular 
  scales 
  not 
  or 
  but 
  little 
  enlarged 
  transversely 
  ; 
  no 
  

   enlarged 
  occipital. 
  Sides 
  of 
  neck 
  irregularly 
  folded; 
  a 
  

   transverse 
  fold 
  in 
  front 
  o£ 
  the 
  collar, 
  which 
  is 
  broadly 
  inter- 
  

   rupted 
  in 
  the 
  middle. 
  Body 
  depressed 
  ; 
  a 
  slight 
  dorsal 
  

   denticulation 
  or 
  low 
  vertebral 
  crest. 
  Nuchal 
  and 
  lateral 
  

   scales 
  very 
  small, 
  granular, 
  feebly 
  keeled 
  ; 
  dorsal 
  scales 
  much 
  

   larger, 
  rhomboidal, 
  subimbricate, 
  strongly 
  keeled, 
  not 
  mucro- 
  

   nate, 
  merging 
  into 
  the 
  caudals, 
  the 
  keels 
  forming 
  oblique 
  

   lines 
  converging 
  posteriorly. 
  Gular 
  and 
  ventral 
  scales 
  

   rhomboidal, 
  imbricate, 
  smooth, 
  the 
  ventrals 
  as 
  large 
  as 
  or 
  a 
  

   little 
  larger 
  than 
  the 
  dorsals. 
  The 
  hind 
  limb, 
  stretched 
  

   forwards, 
  reaches 
  the 
  ear, 
  or 
  between 
  the 
  shoulder 
  and 
  the 
  

   ear 
  ; 
  fifth 
  toe 
  not 
  extending 
  as 
  far 
  as 
  second. 
  Tail 
  once 
  and 
  

   a 
  half 
  to 
  once 
  and 
  three-fourths 
  as 
  long 
  as 
  head 
  and 
  body, 
  

   rounded, 
  tapering; 
  caudal 
  scales 
  large, 
  strongly 
  keeled, 
  not 
  

   or 
  but 
  very 
  shortly 
  mucronate, 
  arranged 
  in 
  rings. 
  Olive 
  

   above, 
  with 
  more 
  or 
  less 
  distinct 
  darker 
  cross-bars 
  accom- 
  

   panied 
  by 
  transverse 
  series 
  of 
  small 
  pale 
  greenish 
  spots 
  ; 
  a 
  

   black 
  band 
  on 
  the 
  collar- 
  fold; 
  throat 
  marbly 
  bluish 
  green; 
  

   belly 
  pink. 
  

  

  mm. 
  

  

  Total 
  length 
  225 
  

  

  Head 
  23 
  

  

  Width 
  of 
  head 
  15 
  

  

  Body 
  48 
  

  

  Fore 
  limb 
  41 
  

  

  Hind 
  limb 
  60 
  

  

  Tail 
  154 
  

  

  Several 
  specimens 
  from 
  Huancabamba, 
  Peru, 
  collected 
  by 
  

   Mr. 
  E. 
  Boettger. 
  

  

  