﻿Bibliographical 
  Notice. 
  435 
  

  

  therefore 
  very 
  similar 
  to 
  that 
  found 
  in 
  certain 
  members 
  of 
  

   the 
  genus 
  Hapalotis, 
  and 
  particularly 
  in 
  H. 
  hirsutus, 
  Gould, 
  

   of 
  which 
  the 
  molars 
  are 
  almost 
  identical 
  in 
  structure 
  with 
  

   those 
  of 
  the 
  present 
  species. 
  

  

  Dimensions 
  of 
  the 
  type, 
  an 
  adult 
  male 
  in 
  spirit 
  : 
  — 
  

  

  Head 
  and 
  body 
  83 
  millim. 
  ; 
  tail 
  101 
  ; 
  hind 
  foot 
  22 
  ; 
  ear 
  

   14 
  ; 
  forearm 
  and 
  hand 
  25 
  ; 
  head 
  to 
  front 
  of 
  last 
  foot-pad 
  10*3 
  ; 
  

   length 
  of 
  last 
  foot-pad 
  2'4. 
  Skull: 
  basal 
  length 
  24*6; 
  

   greatest 
  breadth 
  14'0 
  ; 
  nasals, 
  length 
  11 
  '2; 
  interorbital 
  breadth 
  

   4*8 
  ; 
  interparietal, 
  length 
  5*0, 
  breadth 
  8*3 
  ; 
  length 
  of 
  outer 
  

   wall 
  of 
  infraorbital 
  foramen 
  3"1 
  ; 
  palate, 
  length 
  16'0, 
  breadth 
  

   outside 
  — 
  5'9, 
  inside 
  m 
  - 
  1 
  3'0 
  ; 
  diastema 
  7'9 
  ; 
  length 
  of 
  an- 
  

   terior 
  palatine 
  foramina 
  5'5, 
  of 
  upper 
  molar 
  series 
  5*5. 
  

  

  Hab. 
  South 
  Australia. 
  

  

  Mus 
  argurus 
  has 
  therefore 
  the 
  external 
  characters 
  and 
  the 
  

   skull 
  of 
  Mus, 
  with 
  the 
  molars 
  of 
  Hapalotis 
  ; 
  and 
  I 
  am 
  some- 
  

   what 
  in 
  doubt 
  as 
  to 
  which 
  of 
  the 
  two 
  it 
  should 
  be 
  put 
  into. 
  

   It 
  seems 
  indeed 
  probable 
  that 
  the 
  characters 
  of 
  these 
  two 
  

   genera 
  will 
  be 
  found 
  so 
  to 
  blend 
  together 
  in 
  the 
  different 
  

   species 
  as 
  to 
  necessitate 
  their 
  ultimate 
  union, 
  notwithstanding 
  

   the 
  very 
  striking 
  characters 
  presented 
  by 
  the 
  more 
  typical 
  

   species 
  of 
  Hapalotis. 
  

  

  Pending 
  a 
  general 
  revision 
  of 
  the 
  Australian 
  Muridae, 
  how- 
  

   ever, 
  I 
  refer 
  the 
  present 
  new 
  form 
  to 
  Mus, 
  the 
  differences 
  in 
  

   the 
  teeth 
  appearing 
  not 
  to 
  be 
  of 
  very 
  great 
  systematic 
  

   importance, 
  while 
  its 
  external 
  form, 
  and 
  especially 
  the 
  pro- 
  

   portions 
  of 
  its 
  hind 
  feet, 
  are 
  wholly 
  those 
  of 
  Mus, 
  and 
  in 
  no 
  

   way 
  recall 
  those 
  of 
  the 
  Jerboa-like 
  Hapalotis. 
  

  

  Of 
  species 
  already 
  described 
  none 
  can 
  be 
  confounded 
  with 
  

   this, 
  as, 
  apart 
  from 
  its 
  peculiar 
  teeth, 
  it 
  is 
  readily 
  distinguished 
  

   from 
  all 
  by 
  its 
  wholly 
  white 
  tail. 
  

  

  BIBLIOGRAPHICAL 
  NOTICE. 
  

  

  Bulletin 
  Scientijique 
  de 
  la 
  France 
  et 
  de 
  la 
  Belgique. 
  Public 
  par 
  

   A. 
  Giard. 
  Tome 
  xix. 
  8vo. 
  Paris: 
  Octave 
  Doin, 
  1888. 
  

  

  In 
  the 
  year 
  1869 
  M. 
  Alfred 
  Giard, 
  then 
  Professor 
  in 
  the 
  " 
  Faculte 
  

   des 
  Sciences 
  " 
  at 
  Lille, 
  started 
  a 
  new 
  periodical 
  under 
  the 
  title 
  of 
  

   ' 
  Bulletin 
  Scientifique 
  du 
  Departement 
  du 
  JNord 
  et 
  des 
  Pays 
  voisins." 
  

  

  other 
  cusps. 
  That 
  the 
  internal 
  cusp 
  attached 
  to 
  the 
  anterior 
  lamina 
  really 
  

   belongs 
  to 
  it, 
  and 
  not 
  to 
  the 
  second 
  lamina, 
  has 
  alwa} 
  r 
  s 
  appeared 
  to 
  me 
  

   far 
  more 
  natural, 
  and 
  the 
  state 
  of 
  things 
  in 
  Mus 
  argurus 
  and 
  in 
  Hapalotis 
  

   strongly 
  supports 
  this 
  view. 
  

  

  