﻿460 
  rnOCEEDTNGS 
  OF 
  THE 
  NATIONAL 
  MUSEVM. 
  

  

  York 
  and. 
  Illinois. 
  The 
  color 
  of 
  the 
  back 
  is 
  about 
  the 
  same, 
  but 
  the 
  

   coloration 
  as 
  a 
  whole 
  is 
  paler; 
  and 
  the 
  California 
  animal 
  lacks 
  the 
  black 
  

   down 
  the 
  fore 
  legs. 
  The 
  species 
  ranges 
  north 
  to 
  Washington. 
  

  

  SPILOGALE 
  AMBIGUA, 
  new 
  species. 
  

   CHIHUAHUAN 
  LITTLE 
  STRIPED 
  SKUNK. 
  

  

  Type. 
  — 
  No. 
  |§|§|, 
  U.S.N.M. 
  (Collection 
  International 
  Boundary 
  Com- 
  

   mission.) 
  Adult 
  male 
  from 
  Eagle 
  Mountain, 
  Chihuahua, 
  Mexico 
  (about 
  

   four 
  miles 
  south 
  of 
  Monument 
  No. 
  15, 
  Mexican 
  boundary 
  line), 
  taken 
  

   March 
  23, 
  1892, 
  by 
  Doctor 
  Mearns 
  and 
  F. 
  X. 
  Holzner. 
  Original 
  num- 
  

   ber, 
  1574. 
  

  

  Description 
  of 
  type. 
  — 
  Color 
  pattern 
  as 
  usual 
  in 
  this 
  genus. 
  In 
  mark- 
  

   ings 
  scarcely 
  differing 
  from 
  8. 
  pracilis, 
  except 
  that 
  the 
  white 
  spots 
  on 
  

   the 
  thighs 
  and 
  at 
  the 
  base 
  of* 
  the 
  tail 
  are 
  smaller. 
  The 
  lowest 
  stripes 
  

   on 
  the 
  sides 
  are 
  as 
  broad 
  as 
  they 
  are 
  in 
  8. 
  gracilis^ 
  and, 
  consequently, 
  

   much 
  broader 
  than 
  those 
  of 
  8. 
  leucoparia. 
  There 
  is 
  more 
  black 
  on 
  the 
  

   under 
  side 
  of 
  the 
  tail 
  at 
  base 
  than 
  in 
  S. 
  gracilis. 
  

  

  Measurements 
  of 
  type. 
  — 
  Length, 
  from 
  nose 
  to 
  end 
  of 
  vertebra? 
  of 
  tail, 
  

   411 
  mm.; 
  tail 
  vertebrae, 
  147 
  (to 
  end 
  of 
  hairs, 
  287); 
  ear 
  from 
  crown, 
  11 
  

   (from 
  notch 
  20) 
  ; 
  distance 
  between 
  eyes, 
  18 
  ; 
  diameter 
  of 
  eye, 
  6.5 
  ; 
  length 
  

   of 
  longest 
  whisker, 
  50; 
  from 
  tip 
  of 
  nose 
  to 
  eye, 
  24; 
  to 
  center 
  of 
  pupil, 
  

   28; 
  to 
  ear, 
  45; 
  to 
  tip 
  of 
  ear, 
  72; 
  to 
  occiput, 
  65; 
  to 
  end 
  of 
  outstretched 
  

   hind 
  limb, 
  301; 
  fore 
  limb 
  from 
  olecranon, 
  08; 
  length 
  of 
  fore 
  foot, 
  34; 
  

   longest 
  claw 
  of 
  fore 
  foot, 
  9; 
  hind 
  limb 
  from 
  knee-joint, 
  82; 
  length 
  of 
  

   hind 
  foot, 
  43; 
  longest 
  claw 
  of 
  hind 
  foot, 
  6.5. 
  

  

  Cranial 
  and 
  dental 
  eliaracters. 
  — 
  The 
  skull 
  is 
  almost 
  as 
  high 
  as 
  that 
  of 
  

   S. 
  ringens^ 
  with 
  the 
  frontoparietal 
  region 
  almost 
  as 
  much 
  elevated. 
  

   The 
  zygomatic 
  arches 
  are 
  more 
  si>reading, 
  the 
  nasal 
  orifice 
  much 
  

   smaller, 
  the 
  postorbital 
  i^rocesses 
  more 
  peg- 
  like, 
  and 
  the 
  anterior 
  teeth 
  

   of 
  the 
  lateral 
  row 
  more 
  crowded. 
  Altogether 
  the 
  skull 
  and 
  teeth 
  are 
  

   almost 
  exactly 
  intermediate 
  between 
  those 
  of 
  S. 
  gracilis 
  of 
  southern 
  

   Arizona 
  and 
  the 
  eastern 
  group 
  of 
  species 
  having 
  high-and-narrow 
  

   skulls. 
  

  

  General 
  remarks. 
  — 
  This 
  is 
  a 
  small, 
  slender 
  species, 
  with 
  much 
  shorter 
  

   ears 
  than 
  8. 
  gracilis. 
  The 
  pelage 
  is 
  soft 
  and 
  long, 
  with 
  the 
  parts 
  which 
  

   are 
  ordinarily 
  jet 
  black 
  faded 
  to 
  grayish 
  black. 
  With 
  cranial 
  charac- 
  

   ters 
  intermediate 
  between 
  those 
  of 
  the 
  eastern 
  and 
  western 
  sectif)ns 
  of 
  

   the 
  genus, 
  this 
  species 
  is 
  the 
  connectant. 
  Its 
  closest 
  relationship 
  is 
  

   with 
  the 
  Spilogale 
  of 
  central 
  Mexico, 
  and 
  not 
  with 
  8. 
  indianola 
  of 
  the 
  

   Gulf 
  coast 
  of 
  Texas, 
  from 
  which 
  it 
  is 
  separated 
  by 
  the 
  range 
  of 
  *S'. 
  

   leucoparia^^ 
  species 
  belonging 
  to 
  the 
  low-skulled 
  western 
  group 
  inhab- 
  

   iting 
  the 
  middle 
  Eio 
  Grande 
  region. 
  This 
  species 
  is 
  at 
  present 
  known 
  

   only 
  from 
  the 
  rocky 
  hills 
  east 
  of 
  the 
  Mimbres 
  Valley 
  and 
  Lake 
  

   Palomas, 
  on 
  the 
  Mexican 
  line. 
  

  

  