﻿128 
  THE 
  ZOOLOGIST. 
  

  

  always 
  betook 
  themselves 
  to 
  the 
  water 
  and 
  reeds, 
  but 
  rarely 
  

   faced 
  the 
  open 
  river. 
  One 
  wounded 
  individual 
  that 
  did 
  brave 
  

   the 
  stream 
  was 
  snapped 
  away 
  by 
  a 
  Crocodile.* 
  On 
  the 
  other 
  

   hand, 
  on 
  the 
  South 
  American 
  Purus, 
  Paul 
  Fountain 
  describes 
  

   the 
  Deer 
  as 
  taking 
  freely 
  to 
  the 
  water, 
  though 
  several 
  times 
  he 
  

   saw 
  them 
  pulled 
  under 
  by 
  Caymans. 
  t 
  Lydekker, 
  quoting 
  from 
  

   the 
  writings 
  of 
  Milne-Edwards 
  and 
  Grandidier, 
  and 
  dealing 
  with 
  

   the 
  Sifakas 
  (Lemuroids) 
  of 
  Madagascar, 
  relates 
  that 
  the 
  various 
  

   races 
  and 
  species 
  are 
  so 
  sharply 
  separated 
  from 
  one 
  another, 
  " 
  that 
  

   it 
  is 
  sufficient 
  to 
  cross 
  a 
  river 
  — 
  it 
  may 
  be 
  of 
  no 
  great 
  width 
  — 
  in 
  

   order 
  to 
  find 
  that, 
  while 
  on 
  one 
  bank 
  all 
  the 
  Sifakas 
  belong 
  to 
  

   one 
  race, 
  on 
  the 
  opposite 
  bank 
  they 
  will 
  be 
  of 
  another 
  race, 
  if 
  

   not 
  of 
  a 
  distinct 
  species." 
  J 
  In 
  Algeria, 
  Moritz 
  Wagner 
  observed 
  

   that 
  the 
  rivers 
  which 
  run 
  from 
  the 
  Atlas 
  range 
  to 
  the 
  Mediter- 
  

   ranean, 
  without 
  being 
  very 
  broad, 
  still 
  served 
  as 
  distinct 
  barriers. 
  

   He 
  found 
  certain 
  of 
  the 
  smaller 
  rodents 
  and 
  reptiles, 
  certain 
  

   species 
  of 
  beetles 
  and 
  snails, 
  to 
  be 
  confined 
  by 
  the 
  Paver 
  Schelif, 
  

   which 
  they 
  never 
  crossed. 
  § 
  

  

  In 
  India 
  a 
  similar 
  story 
  is 
  told 
  in 
  relation 
  to 
  the 
  Eiver 
  

   Ganges. 
  According 
  to 
  Mr. 
  Lockwood, 
  the 
  district 
  of 
  Monghyr, 
  

   which 
  consists 
  of 
  some 
  four 
  thousand 
  square 
  miles, 
  is 
  divided 
  

   into 
  two 
  nearly 
  equal 
  portions 
  by 
  the 
  Ganges. 
  The 
  northern 
  

   part 
  is 
  an 
  extensive 
  plain 
  formed 
  by 
  the 
  rich 
  alluvial 
  soil 
  

   brought 
  down 
  by 
  the 
  ever 
  changing 
  river, 
  whilst 
  the 
  southern 
  

   portion 
  consists 
  of 
  vast 
  rice-tracts, 
  and 
  forests 
  which 
  cover 
  the 
  

   metamorphic 
  hills, 
  extending 
  far 
  away 
  into 
  Central 
  India 
  from 
  

   the 
  town 
  of 
  Monghyr, 
  three 
  hundred 
  miles 
  north-west 
  of 
  Calcutta. 
  

   " 
  This 
  division 
  of 
  the 
  district 
  separates 
  also 
  in 
  a 
  marked 
  manner 
  

   the 
  most 
  conspicuous 
  species 
  of 
  the 
  animal 
  and 
  vegetable 
  king- 
  

   doms, 
  and 
  the 
  sportsman 
  who 
  to-day 
  ma} 
  7 
  find 
  Tigers, 
  Bears, 
  

   Baboons, 
  Tupaias, 
  Peacocks, 
  Jungle-fowl, 
  and 
  Grey 
  Partridge 
  in 
  

   the 
  undulating 
  country 
  of 
  the 
  south, 
  will 
  look 
  in 
  vain 
  for 
  such 
  

   things 
  if 
  to-morrow 
  he 
  crosses 
  the 
  river 
  northward. 
  The 
  river 
  

  

  :;: 
  ' 
  Gun- 
  and 
  Camera 
  in 
  S. 
  Africa,' 
  p. 
  365. 
  

  

  | 
  ' 
  The 
  Great 
  Mountains 
  and 
  Forests 
  of 
  iS. 
  America, 
  ' 
  p. 
  331. 
  

  

  J 
  'Boy. 
  Nat. 
  Hist.' 
  vol. 
  i. 
  pp. 
  208-9. 
  

  

  § 
  Quoted 
  by 
  Strauss, 
  ' 
  The 
  Old 
  Faith 
  and 
  the 
  New,' 
  2nd 
  edit. 
  p. 
  221. 
  

   (Probably 
  extracted 
  from 
  Wagner's 
  ' 
  Reisen 
  in 
  Algier,' 
  a 
  work 
  with 
  which 
  I 
  

   am 
  unacquainted.) 
  

  

  

  