﻿150 
  DISCOGLOSSID^. 
  

  

  as 
  deep, 
  ending 
  in 
  an 
  obtuse 
  point 
  ; 
  the 
  upper 
  crest 
  

   convex, 
  not 
  or 
  but 
  sliglitly 
  deeper 
  than 
  the 
  lower, 
  

   and 
  extending 
  upon 
  the 
  back 
  ; 
  the 
  muscular 
  part 
  at 
  

   its 
  base 
  two-fifths 
  to 
  one-half 
  the 
  total 
  depth. 
  

  

  Mouth 
  triangular. 
  Beak 
  white, 
  edged 
  with 
  black. 
  

   Lips 
  bordered 
  by 
  a 
  series 
  of 
  papillaa 
  ; 
  a 
  well-marked 
  

   chink 
  on 
  each 
  side 
  of 
  the 
  lower 
  lip 
  ; 
  series 
  of 
  labial 
  

   teeth 
  f 
  , 
  occupying 
  the 
  whole 
  width 
  of 
  the 
  lips, 
  all 
  

   uninterrupted, 
  or 
  the 
  third 
  lower 
  broken 
  up 
  in 
  the 
  

   middle 
  ; 
  the 
  first 
  upper 
  and 
  the 
  first 
  lower 
  series 
  

   formed 
  of 
  two 
  or 
  three 
  rows 
  of 
  teeth, 
  the 
  others 
  of 
  

   two, 
  three, 
  or 
  four. 
  

  

  Well-marked 
  series 
  of 
  muciferous 
  crypts 
  ; 
  one 
  on 
  

   each 
  side 
  of 
  the 
  head, 
  from 
  above 
  the 
  upper 
  lip, 
  

   passing 
  above 
  the 
  nostril 
  and 
  bordering 
  the 
  eye, 
  then 
  

   descending 
  towards 
  the 
  upper 
  lip, 
  where 
  it 
  curves 
  and 
  

   ascends 
  to 
  below 
  the 
  eye; 
  two 
  on 
  each 
  side 
  of 
  the 
  

   back, 
  beginning 
  at 
  some 
  distance 
  behind 
  the 
  eye, 
  the 
  

   upper 
  extending 
  to 
  the 
  dorsal 
  portion 
  of 
  the 
  muscular 
  

   part 
  of 
  the 
  tail, 
  the 
  lower 
  very 
  short 
  and 
  parallel 
  to 
  

   the 
  upper 
  ; 
  and 
  finally 
  a 
  short 
  curved 
  one 
  on 
  each 
  

   side 
  of 
  the 
  belly. 
  

  

  Brown 
  above, 
  greyish-white 
  below 
  ; 
  the 
  series 
  of 
  

   crypts 
  whitish 
  ; 
  tail 
  greyish, 
  with 
  or 
  without 
  small 
  

   brown 
  spots. 
  A 
  network 
  of 
  fine 
  blackish 
  lines 
  

   crossing 
  each 
  other 
  at 
  right 
  angles 
  is 
  spread 
  over 
  

   the 
  whole 
  tadpole. 
  

  

  Total 
  length 
  50 
  mm. 
  ; 
  body, 
  20 
  ; 
  width 
  of 
  body, 
  16 
  ; 
  

   tail, 
  30; 
  depth 
  of 
  tail, 
  15. 
  

  

  Habitat. 
  — 
  Bomhinator 
  igneus 
  must 
  be 
  regarded 
  as 
  

   an 
  Eastern 
  species, 
  essentially 
  bound 
  to 
  the 
  plain. 
  

   It 
  inhabits 
  Russia, 
  west 
  of 
  the 
  Volga, 
  between 
  lat. 
  47° 
  

   and 
  56°, 
  Southern 
  Sweden 
  (Scania), 
  Denmark, 
  North 
  

   Germany 
  (as 
  far 
  west 
  as 
  the 
  Weser 
  and 
  Oldenburg), 
  

   Austria-Hungary, 
  and 
  Moldavia. 
  As 
  pointed 
  out 
  by 
  

   Wolterstorfi" 
  and 
  confirmed 
  by 
  v. 
  Mehely, 
  it 
  avoids 
  

   hilly 
  districts, 
  where 
  it 
  is 
  replaced 
  by 
  its 
  congener 
  

   B.jMchijjms 
  ; 
  only 
  in 
  a 
  few 
  places 
  in 
  Thuringia, 
  Lower 
  

   Austria, 
  and 
  Transylvania 
  are 
  the 
  two 
  species 
  to 
  be 
  

  

  