﻿194 
  

  

  PELOBATID^. 
  

  

  Fig. 
  72. 
  

  

  Open 
  moutli. 
  

  

  of 
  the 
  orbit 
  

  

  Vomerine 
  teeth 
  in 
  two 
  strong, 
  transverse, 
  slightly 
  

   oblique 
  or 
  slightly 
  curved 
  series 
  between 
  the 
  choange, 
  

   the 
  inner 
  borders 
  of 
  which 
  they 
  touch, 
  

   and 
  narrowly 
  separated 
  from 
  each 
  

   other 
  in 
  the 
  middle. 
  Eustachian 
  tubes 
  

   very 
  small. 
  Tongue 
  large, 
  thick, 
  cir- 
  

   cular, 
  sometimes 
  entire, 
  usually 
  feebly 
  

   nicked 
  behind. 
  

  

  Head 
  very 
  convex, 
  broader 
  than 
  

   long, 
  the 
  occiput 
  gibbose; 
  the 
  skin 
  

   adherent 
  to 
  tlie 
  skull; 
  snout 
  rounded, 
  

   projecting 
  beyond 
  the 
  mouth, 
  as 
  long 
  

   as 
  or 
  a 
  little 
  longer 
  than 
  the 
  diameter 
  

   no 
  canthus 
  rostralis 
  ; 
  nostril 
  midway 
  

   between 
  the 
  eye 
  and 
  the 
  tip 
  of 
  the 
  snout 
  ; 
  eye 
  large, 
  

   prominent 
  ; 
  interorbital 
  space 
  convex, 
  much 
  broader 
  

   than 
  the 
  upper 
  eyelid, 
  and 
  a 
  little 
  greater 
  than 
  the 
  

   distance 
  between 
  the 
  nostrils 
  ; 
  a 
  sort 
  of 
  low 
  knob 
  

   behind 
  the 
  eye, 
  formed 
  by 
  the 
  squamosal 
  bone. 
  

  

  Fingers 
  moderately 
  elongate, 
  pointed, 
  third 
  much 
  

   the 
  longest, 
  first 
  and 
  fourth 
  equal 
  and 
  slightly 
  longer 
  

   than 
  second 
  ; 
  subarticular 
  tubercles 
  very 
  indistinct 
  ; 
  

   two 
  rather 
  indistinct 
  carpal 
  tubercles. 
  

  

  Hind 
  limbs 
  robust 
  and 
  short, 
  with 
  swollen 
  calves 
  ; 
  

   the 
  tibio-tarsal 
  articulation 
  reaches 
  the 
  shoulder 
  or 
  

   the 
  commissure 
  of 
  the 
  mouth, 
  and 
  the 
  tarso-metatarsal 
  

   the 
  eye, 
  or 
  between 
  the 
  eye 
  and 
  the 
  nostril; 
  tibia 
  

   shorter 
  than 
  the 
  femur, 
  the 
  heels 
  being 
  widely 
  sepa- 
  

   rated 
  from 
  each 
  other 
  when 
  the 
  legs 
  are 
  folded. 
  

   Foot 
  much 
  longer 
  than 
  the 
  tibia 
  ; 
  toes 
  short, 
  pointed, 
  

  

  broadly 
  webbed, 
  at 
  least 
  two- 
  

   thirds 
  webbed 
  in 
  summer, 
  the 
  

   web 
  reaching 
  the 
  tips 
  of 
  all 
  the 
  

   toes 
  in 
  the 
  spring 
  ; 
  subarticular 
  

   tubercles 
  indistinct 
  ; 
  a 
  very 
  large, 
  

   compressed, 
  sharp-edged 
  inner 
  

   metatarsal 
  tubercle, 
  placed 
  ob- 
  

   liquely 
  to 
  the 
  axis 
  of 
  the 
  foot 
  

   like 
  the 
  inner 
  toe, 
  which 
  it 
  equals 
  or 
  slightly 
  exceeds 
  

   in 
  length. 
  

  

  Fig. 
  73. 
  

  

  Lower 
  view 
  of 
  foot. 
  

  

  