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  PELOBATID^. 
  

  

  than 
  the 
  lower, 
  and 
  rarely 
  extending 
  forwards 
  as 
  far 
  

   as 
  the 
  level 
  of 
  the 
  spiraculum 
  ; 
  the 
  depth 
  of 
  the 
  mus- 
  

   cular 
  portion 
  at 
  its 
  base 
  one-third 
  to 
  two-fifths 
  of 
  the 
  

   greatest 
  total 
  depth. 
  

  

  Beak 
  white, 
  with 
  a 
  black 
  margin. 
  An 
  inverted 
  

   fold 
  at 
  the 
  side 
  of 
  the 
  lip 
  ; 
  this 
  is 
  furnished 
  with 
  a 
  

   single 
  row 
  of 
  papillae 
  except 
  on 
  the 
  upper 
  border, 
  

   which 
  is 
  toothed. 
  Labial 
  teeth 
  in 
  |- 
  or 
  f 
  series, 
  the 
  

   second 
  and 
  third, 
  both 
  above 
  and 
  below, 
  the 
  longest; 
  

   the 
  first 
  and 
  second 
  series 
  in 
  both 
  divisions 
  of 
  the 
  lip 
  

   uninterrupted, 
  or 
  the 
  second 
  upper 
  with 
  very 
  slight 
  

   median 
  interruption, 
  the 
  others 
  separated 
  in 
  the 
  

   middle 
  and 
  gradually 
  decreasing 
  in 
  length 
  to 
  the 
  fifth, 
  

   which 
  if 
  present 
  is 
  short. 
  According 
  to 
  Bedriaga, 
  

   there 
  may 
  be 
  as 
  many 
  as 
  six 
  series 
  of 
  teeth 
  on 
  the 
  

   lower 
  lip, 
  the 
  first 
  three 
  of 
  which 
  are 
  uninterrupted. 
  

  

  Lines 
  of 
  crypts 
  usually 
  very 
  ap23arent, 
  but 
  some- 
  

   times 
  very 
  indistinct. 
  On 
  the 
  head 
  they 
  approach 
  

   each 
  other 
  between 
  the 
  nostrils 
  and 
  completely 
  border 
  

   the 
  eye 
  posteriorly, 
  the 
  anterior 
  extremities 
  of 
  this 
  

   naso-orbital 
  hoop 
  approaching 
  each 
  other 
  above 
  the 
  

   upper 
  lip. 
  Of 
  the 
  two 
  dorsal 
  lines, 
  which 
  diverge 
  

   posteriorly, 
  the 
  upper, 
  extending 
  to 
  the 
  dorsal 
  edge 
  of 
  

   the 
  muscular 
  portion 
  of 
  the 
  tail, 
  is 
  interrupted 
  at 
  a 
  

   short 
  distance 
  behind 
  the 
  eye; 
  its 
  anterior 
  portion 
  

   may 
  even 
  descend 
  to 
  join 
  the 
  lower 
  line, 
  which 
  thus 
  

   appears 
  bifurcated 
  in 
  front; 
  the 
  lower 
  line 
  extends, 
  

   usually 
  uninterrupted, 
  from 
  behind 
  the 
  eye 
  to 
  the 
  

   middle 
  of 
  the 
  muscular 
  portion 
  of 
  the 
  tail, 
  where 
  it 
  is 
  

   lost 
  ; 
  both 
  lines, 
  however, 
  may 
  stop 
  short 
  of 
  the 
  tail. 
  

   A 
  sinuous 
  line, 
  on 
  the 
  flanks, 
  curved 
  above 
  the 
  spira- 
  

   culum, 
  not 
  bent 
  upwards 
  posteriorly, 
  sometimes 
  ex- 
  

   tending 
  nearly 
  to 
  the 
  origin 
  of 
  the 
  hind 
  limbs. 
  In 
  

   addition 
  to 
  these 
  lines 
  a 
  short 
  horizontal 
  branch 
  

   originates 
  above 
  the 
  upper 
  lip, 
  and 
  bifurcating 
  below 
  

   the 
  vertical 
  of 
  the 
  anterior 
  border 
  of 
  the 
  eye, 
  forms 
  a 
  

   hoop 
  which 
  descends 
  to 
  the 
  sides 
  of 
  the 
  throat. 
  

  

  Coloration 
  usually 
  varying 
  from 
  pale 
  grey 
  to 
  olive- 
  

   brown 
  above, 
  the 
  sides 
  with 
  pale 
  metallic 
  spots 
  ; 
  the 
  

  

  