﻿MANUAL 
  OF 
  FISH-CULTURE. 
  

  

  257 
  

  

  males 
  and 
  smaller 
  in 
  females. 
  A 
  fold 
  of 
  skin 
  runs 
  from 
  the 
  eye 
  back- 
  

   ward, 
  with 
  a 
  short 
  branch 
  from 
  the 
  tympanum 
  to 
  the 
  shoulder. 
  The 
  

   femur 
  and 
  tibia 
  are 
  equal 
  in 
  length, 
  the 
  web 
  of 
  toes 
  not 
  reaching 
  end 
  

   of 
  fourth 
  toe. 
  

  

  The 
  color 
  above 
  is 
  dark 
  olive 
  posteriorly, 
  passing 
  into 
  brilliant 
  green 
  

   anteriorly. 
  It 
  is 
  sometimes 
  greenish-brown 
  above 
  and 
  on 
  sides, 
  with 
  

   small 
  round 
  brown 
  spots. 
  The 
  buttocks 
  are 
  usually 
  mottled 
  with 
  brown 
  

   and 
  yellowish 
  white, 
  but 
  are 
  almost 
  uniformly 
  black 
  in 
  some 
  specimens. 
  

   Below, 
  this 
  species, 
  white 
  or 
  greenish 
  white, 
  sometimes 
  more 
  or 
  less 
  

   mottled 
  and 
  blotched. 
  The 
  throat 
  is 
  citron 
  yellow. 
  

  

  This 
  frog 
  is 
  especially 
  aquatic 
  in 
  habits, 
  not 
  hunting 
  on 
  land; 
  it 
  fre- 
  

   quents 
  all 
  kinds 
  of 
  fresh 
  waters. 
  It 
  is 
  more 
  solitary 
  in 
  its 
  habits 
  than 
  

   E. 
  virescens, 
  living 
  singly, 
  in 
  pairs, 
  or 
  in 
  small 
  companies. 
  It 
  is 
  active 
  

   on 
  land 
  and 
  in 
  water, 
  but 
  not 
  noisy. 
  A 
  nasal 
  "chung" 
  is 
  occasionally 
  

   uttered. 
  When 
  disturbed 
  it 
  often 
  emits 
  a 
  shrill 
  cry 
  as 
  it 
  leaps 
  into 
  

  

  Jiana 
  cateubiana. 
  ITpper 
  fig- 
  

   ure 
  female, 
  lower 
  figure 
  male. 
  

  

  Rana, 
  clamata. 
  Upper 
  figure 
  fe- 
  

   male, 
  lower 
  figure 
  male. 
  

  

  Figures 
  illustrating 
  relative 
  size 
  of 
  the 
  tympanum 
  in 
  the 
  two 
  sexes. 
  

  

  the 
  water. 
  It 
  is 
  preeminently 
  an 
  inhabitant 
  of 
  swamps 
  and 
  marshes, 
  

   especially 
  those 
  connected 
  with 
  rivers 
  or 
  large 
  creeks. 
  "It 
  is 
  the 
  first 
  

   species 
  heard 
  in 
  spring, 
  and 
  although 
  its 
  voice 
  is 
  not 
  loud, 
  the 
  noise 
  

   produced 
  by 
  thousands 
  of 
  them 
  is 
  deafening 
  when 
  heard 
  close 
  at 
  hand, 
  

   and 
  is 
  transmitted 
  through 
  the 
  atmosphere 
  for 
  many 
  miles. 
  It 
  may 
  be 
  

   imitated 
  by 
  the 
  syllables 
  chocli; 
  chock, 
  chocTi.^^ 
  

  

  The 
  pickerel 
  frog, 
  marsh 
  frog, 
  or 
  tiger 
  frog 
  {Rana 
  palustris) 
  closely 
  

   resembles 
  the 
  leopard 
  frog, 
  but 
  may 
  be 
  readily 
  distinguished 
  from 
  it 
  by 
  

   the 
  bright 
  yellow 
  on 
  the 
  thighs 
  and 
  legs. 
  It 
  is 
  solitary 
  in 
  its 
  habits 
  

   and 
  is 
  often 
  found 
  in 
  the 
  grass, 
  although 
  preferring 
  cold 
  spring 
  streams. 
  

   In 
  the 
  Alleghany 
  Mountains 
  it 
  is 
  the 
  most 
  abundant 
  frog. 
  It 
  is 
  a 
  very 
  

   active 
  species, 
  taking 
  longer 
  leaps 
  than 
  any 
  of 
  the 
  others 
  here 
  mentioned. 
  

   The 
  note 
  is 
  a 
  prolonged, 
  low, 
  grating 
  croak. 
  Owing 
  to 
  its 
  disagreeable 
  

   odor 
  it 
  is 
  but 
  rarely 
  eaten. 
  

  

  i\ 
  C. 
  K. 
  1897 
  17 
  

  

  