﻿neiv 
  Mammals 
  from 
  Tropical 
  South 
  America. 
  515 
  

  

  Dimensions 
  of 
  the 
  type 
  (measured 
  as 
  a 
  spirit-specimen) 
  : 
  — 
  

  

  Head 
  and 
  body 
  128 
  mm. 
  ; 
  tail 
  174 
  ; 
  hind 
  toot 
  21*5 
  ; 
  ear 
  25'5. 
  

   1 
  Skull 
  : 
  greatest 
  length 
  39*5 
  ; 
  condylo-basal 
  length 
  38 
  ; 
  

   zygomatic 
  breadth 
  22 
  ; 
  nasals 
  18x5'2; 
  interorbital 
  breadth 
  

   (j'5 
  ; 
  palatal 
  length 
  22 
  ; 
  three 
  anterior 
  molariform 
  teeth 
  6"2. 
  

  

  Hab. 
  Island 
  of 
  Grenada, 
  West 
  Indies. 
  Type 
  from 
  

   Annandale. 
  

  

  Type. 
  Adult 
  female. 
  B.M. 
  no. 
  87. 
  6. 
  30. 
  5. 
  Collected 
  

   during 
  the 
  Grenada 
  Eclipse 
  Expedition 
  of 
  1886, 
  and 
  pre- 
  

   sented 
  by 
  G. 
  R. 
  M. 
  Murray, 
  Esq. 
  Three 
  specimens 
  

   examined. 
  

  

  Marmosa 
  tobagi, 
  sp. 
  n. 
  

  

  Size 
  about 
  as 
  in 
  M. 
  grenadce, 
  but 
  skull 
  more 
  slenderly 
  

   built. 
  General 
  colour 
  nearly 
  as 
  in 
  the 
  Trinidad 
  Marmosa, 
  

   dark 
  cinnamon, 
  becoming 
  more 
  russet 
  posteriorly, 
  above 
  ; 
  

   below 
  creamy 
  or 
  buffy 
  white, 
  the 
  hairs 
  of 
  the 
  ventral 
  region 
  

   nearly 
  all 
  slaty 
  at 
  base. 
  Mammary 
  formula 
  not 
  known. 
  

  

  Skull 
  narrower 
  and 
  with 
  more 
  slender 
  muzzle 
  than 
  that 
  of 
  

   M. 
  grenadce. 
  

  

  Dimensions 
  of 
  the 
  type 
  (measured 
  in 
  the 
  flesh) 
  : 
  — 
  

  

  Head 
  and 
  body 
  137 
  mm.; 
  tail 
  19(3 
  ; 
  hind 
  foot 
  22. 
  

  

  Skull 
  : 
  condylo-basal 
  length 
  37*5; 
  zygomatic 
  breadth 
  20; 
  

   nasals 
  10*2 
  X 
  5 
  - 
  6 
  ; 
  interorbital 
  breadth 
  7; 
  palatal 
  length 
  21; 
  

   three 
  anterior 
  molariform 
  teeth 
  6*1. 
  

  

  Nab. 
  Island 
  of 
  Tobago, 
  West 
  Indies. 
  

  

  Type, 
  Adult 
  male. 
  B.M. 
  no. 
  97. 
  6. 
  7. 
  53. 
  Collected 
  11th 
  

   March, 
  1897, 
  and 
  presented 
  by 
  Dr. 
  Percy 
  Kendall. 
  

  

  Marmosa 
  nesaja, 
  sp. 
  n. 
  

  

  Size 
  comparatively 
  large, 
  form 
  stouter 
  than 
  in 
  either 
  the 
  

   adjacent 
  mainland 
  or 
  Tobago 
  animals. 
  General 
  colour 
  above 
  

   between 
  cinnamon 
  and 
  tawny, 
  tending 
  more 
  towards 
  ochra- 
  

   ceous 
  on 
  cheeks 
  and 
  flanks. 
  Under 
  surface 
  cream-buff, 
  the 
  

   hairs 
  on 
  the 
  abdomen 
  slaty 
  at 
  base, 
  those 
  on 
  throat, 
  centre 
  of 
  

   chest, 
  and 
  inguinal 
  region 
  buffy 
  to 
  their 
  roots. 
  

  

  Skull 
  larger 
  and 
  heavier 
  than 
  in 
  the 
  allied 
  forms, 
  the 
  

   zygomata 
  widely 
  expanded. 
  Supraorbital 
  ridges 
  thick 
  and 
  

   heavy, 
  but 
  rarely 
  angularly 
  projected 
  over 
  the 
  orbits. 
  

  

  Dimensions 
  of 
  the 
  type 
  (measured 
  in 
  flesh) 
  : 
  — 
  

  

  Head 
  and 
  body 
  159 
  mm.; 
  tail 
  209 
  ; 
  hind 
  foot 
  27 
  ; 
  ear 
  26. 
  

  

  Skull: 
  greatest 
  length 
  42'3 
  ; 
  condylo-basal 
  length 
  11; 
  

  

  31* 
  

  

  