﻿474 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  vol.44. 
  

  

  MUSTELA 
  VISON 
  LUTENSIS 
  (Bangs). 
  

  

  1898. 
  Putorius 
  (Lutreola) 
  lutends 
  Bangs, 
  Proc. 
  Boston 
  Soc. 
  Nat. 
  Hist., 
  vol. 
  28, 
  

  

  p. 
  229, 
  March. 
  

   1901. 
  [Putorius] 
  lutensis 
  Elliot, 
  Field 
  Col. 
  Mus. 
  Publ. 
  Zool., 
  vol. 
  2, 
  p. 
  340. 
  

   1901. 
  Putorius 
  lutensis 
  Miller 
  and 
  Rehn, 
  Proc. 
  Boston 
  Soc. 
  Nat. 
  Hist., 
  vol. 
  30, 
  

  

  No. 
  1, 
  p. 
  220, 
  December 
  27. 
  

   1912. 
  Mu^tela 
  lutensis 
  Miller, 
  Bull. 
  U. 
  S. 
  Nat. 
  Mus., 
  No. 
  79, 
  p. 
  101, 
  December 
  31. 
  

  

  Type-locality. 
  — 
  Salt 
  marshes 
  off 
  Matanzas 
  Inlet, 
  St. 
  John 
  County, 
  

   Florida. 
  

  

  GeograjyJiic 
  distribution. 
  — 
  Coast 
  of 
  southeastern 
  United 
  States 
  from 
  

   South 
  Carolina 
  to 
  Florida. 
  

  

  Subspecific 
  characters. 
  — 
  Size 
  medium; 
  colors 
  pale, 
  russet 
  to 
  clay 
  or 
  

   reddish-brown; 
  tail 
  short. 
  Skull 
  long 
  and 
  slender; 
  teeth 
  large, 
  

   tooth 
  row 
  measuring 
  greater 
  than 
  in 
  any 
  existing 
  American 
  mink. 
  

  

  Measurements 
  of 
  slculls. 
  — 
  Average 
  of 
  5 
  skulls 
  of 
  adult 
  males 
  from 
  

   coast 
  of 
  Georgia 
  and 
  South 
  Carolina: 
  Condylobasal 
  length, 
  71.1; 
  

   zygomatic 
  breadth, 
  39.8; 
  least 
  postorbital 
  constriction, 
  12.2; 
  mas- 
  

   toid 
  breadth, 
  34; 
  length 
  of 
  upper 
  molar-premolar 
  row, 
  19.2 
  mm. 
  

  

  RemarTcs. 
  — 
  Specimens 
  from 
  Smith's 
  Island, 
  Virginia, 
  though 
  

   referred 
  provisionally 
  to 
  M. 
  v. 
  lutreocepliala, 
  show 
  such 
  a 
  strong 
  

   approach 
  toward 
  lutensis 
  that 
  I 
  believe 
  the 
  evidence 
  of 
  intergrada- 
  

   tion 
  is 
  sufficient 
  to 
  warrant 
  me 
  in 
  treating 
  this 
  remarkable 
  mink 
  as 
  

   a 
  subspecies. 
  Good 
  series 
  of 
  minks 
  from 
  the 
  immediate 
  seacoast 
  

   between 
  Smith's 
  Island 
  and 
  Charleston 
  will 
  be 
  necessary 
  before 
  a 
  final 
  

   understanding 
  of 
  the 
  relationships 
  of 
  these 
  two 
  forms 
  is 
  possible. 
  

  

  MUSTELA 
  VISON 
  VULGIVAGA 
  (Bangs). 
  

  

  1895. 
  Putorius 
  {Lutreola) 
  vulgivagus 
  Bangs, 
  Proc. 
  Boston 
  Soc. 
  Nat. 
  Hist., 
  vol. 
  26, 
  

   p. 
  539, 
  author's 
  edition, 
  July 
  31. 
  

  

  1896. 
  Putorius 
  vison 
  vulgivagus 
  Bangs, 
  Proc. 
  Boston 
  Soc. 
  Nat. 
  Hist., 
  vol. 
  27, 
  p. 
  5, 
  

   March. 
  

  

  1896. 
  Putorius 
  vulgivagus 
  Bangs, 
  Proc. 
  Boston 
  Soc. 
  Nat. 
  Hist., 
  vol. 
  27, 
  p. 
  5, 
  

  

  March. 
  

   1912. 
  Mustela 
  vison 
  vulgivaga 
  Miller, 
  Bull. 
  U. 
  S. 
  Nat. 
  Mus., 
  No. 
  79, 
  p. 
  102 
  

  

  December 
  31. 
  

  

  Type-locality. 
  — 
  Burbridge, 
  Plaquemines 
  Parish, 
  Louisiana. 
  

  

  Geographic 
  distribution. 
  — 
  Coast 
  of 
  Louisiana 
  and 
  Mississippi. 
  North 
  

   in 
  the 
  Mississippi 
  River 
  bottoms 
  to 
  northern 
  Louisiana. 
  

  

  SubsjJecific 
  characters. 
  — 
  Like 
  M. 
  v. 
  lutreocephala, 
  but 
  averaging 
  

   decidedly 
  smaller 
  and 
  somewhat 
  paler. 
  

  

  . 
  Measurements 
  of 
  slculls. 
  — 
  Average 
  of 
  6 
  skulls 
  of 
  adult 
  males 
  from 
  

   coast 
  region 
  of 
  Louisiana: 
  Condylobasal 
  length, 
  65.9; 
  zygomatic 
  

   breadth, 
  37.8; 
  least 
  postorbital 
  constriction, 
  14.2; 
  mastoid 
  breadth, 
  

   32; 
  length 
  of 
  upper 
  molar-premolar 
  row, 
  17.5 
  mm. 
  

  

  Remarks. 
  — 
  The 
  Louisiana 
  coast 
  mink 
  is 
  simply 
  a 
  small, 
  slightly 
  

   paler 
  form 
  of 
  lutreocephala, 
  with 
  which 
  it 
  intergrades 
  throughout 
  

   the 
  lower 
  IMississippi 
  River 
  region. 
  Specimens 
  from 
  as 
  far 
  north 
  

   on 
  the 
  Mississippi 
  River 
  as 
  Burlington, 
  Iowa, 
  show 
  a 
  slight 
  tendency 
  

   toward 
  vulgivaga, 
  while 
  specimens 
  from 
  western 
  Alabama 
  are 
  almost 
  

   typical 
  of 
  lutreocephala. 
  

  

  