﻿50 
  

  

  INTRODUCTION. 
  

  

  to 
  five 
  or 
  six, 
  as 
  in 
  Bomhinator 
  jjacJujpus 
  (Fig. 
  21, 
  a). 
  

   Bomhinator 
  igneus 
  and 
  Hyla 
  are 
  intermediate 
  between 
  

   the 
  two 
  extremes. 
  Owing 
  to 
  the 
  filling 
  up 
  of 
  the 
  

   abdominal 
  cavity 
  by 
  the 
  more 
  voluminous 
  genital 
  

   organs, 
  the 
  lungs 
  are 
  usually 
  smaller 
  in 
  females 
  

   than 
  in 
  males. 
  In 
  the 
  genus 
  Bana 
  (Fig. 
  21, 
  c) 
  

  

  Fig. 
  21. 
  

  

  \ 
  

  

  \}yf^y^ 
  

  

  ' 
  Ai 
  

  

  r 
  

  

  B 
  

  

  y 
  

  

  -^: 
  X 
  

  

  

  w 
  

  

  ^ 
  

  

  V 
  

  

  A 
  

  

  Lungs 
  of 
  — 
  A. 
  Bomhinator 
  pacJiy 
  pus. 
  b. 
  Pelohates 
  fuscus. 
  

   c. 
  Rana 
  temporaria. 
  

  

  the 
  lungs, 
  when 
  fully 
  distended, 
  measure 
  two- 
  

   thirds 
  or 
  more 
  the. 
  length 
  of 
  the 
  abdominal 
  cavity 
  

   in 
  males, 
  one-third 
  to 
  one-half 
  in 
  females. 
  In 
  

   Bomhinator, 
  Bitfo, 
  and 
  Hijla 
  they 
  measure 
  nearly 
  

   three-fourths 
  that 
  length 
  in 
  males, 
  two-thirds 
  in 
  

   females. 
  In 
  Pelohates 
  they 
  are 
  equally 
  developed 
  in 
  

   both 
  sexes, 
  and 
  larg-er 
  than 
  in 
  any 
  other 
  genus, 
  with 
  

   a 
  seemingly 
  superadded 
  narrower 
  terminal 
  portion 
  

   bent 
  inwards 
  and 
  forwards, 
  tapering 
  to 
  a 
  fine 
  point 
  

   (Fig. 
  21, 
  b) 
  ; 
  the 
  length 
  of 
  the 
  inflated 
  lung 
  consider- 
  

  

  