﻿BOMBINATOR. 
  

  

  157 
  

  

  tlie 
  sacrum 
  or 
  in 
  the 
  presence 
  of 
  two 
  sacral 
  diapo- 
  

   pliyses, 
  the 
  second 
  of 
  which 
  is 
  produced 
  by 
  enlarge- 
  

   ment 
  of 
  the 
  process 
  at 
  the 
  base 
  of 
  the 
  nrostyle, 
  and 
  

   connected 
  distally 
  with 
  the 
  one 
  in 
  front 
  of 
  it 
  by 
  a 
  

   common 
  cartilaginous 
  epiphysis. 
  Both 
  Camerano 
  

   (loc. 
  cit.) 
  and 
  Howes 
  (' 
  Proc. 
  Anat. 
  Soc. 
  Gr. 
  Brit.,' 
  

   1890, 
  p. 
  xvi) 
  have 
  recorded 
  a 
  cnrious 
  anomaly 
  similar 
  

   to 
  that 
  observed 
  by 
  Lataste 
  in 
  an 
  Alytes 
  ohstetricans 
  : 
  

   the 
  sacral 
  process 
  on 
  the 
  right 
  side 
  is 
  normal, 
  whilst 
  

   that 
  on 
  the 
  left 
  side 
  is 
  formed 
  by 
  the 
  tenth 
  vertebra, 
  

   or 
  base 
  of 
  the 
  urostyle. 
  The 
  latter 
  bone 
  is 
  sometimes 
  

   provided 
  witb 
  two 
  processes 
  on 
  each 
  side 
  instead 
  of 
  

   one. 
  I 
  have 
  examined 
  a 
  specimen 
  from 
  Amboise, 
  

   preserved 
  in 
  M. 
  Lataste's 
  collection, 
  which 
  is 
  re- 
  

   markable 
  for 
  having 
  nine 
  praesacral 
  vertebrse, 
  and 
  

   perfectly 
  normal 
  sacral 
  vertebra 
  and 
  urostyle. 
  

  

  Measurements 
  of 
  Skeleton 
  (in 
  millimetres). 
  

  

  

  

  

  c^ 
  

  

  ? 
  

  

  Length 
  of 
  skull 
  ... 
  12 
  

  

  11 
  

  

  Width 
  of 
  skull 
  

  

  

  14 
  

  

  12 
  

  

  Least 
  interorbital 
  width 
  

  

  

  2-5 
  

  

  2 
  

  

  Dorsal 
  vertebral 
  column 
  

  

  

  15 
  

  

  14 
  

  

  Urostyle 
  

  

  

  11 
  

  

  12 
  

  

  Humerus 
  

  

  

  

  10 
  

  

  8 
  

  

  Radius-ulna 
  

  

  

  

  65 
  

  

  6 
  

  

  Manus 
  

  

  

  

  8 
  

  

  7 
  

  

  Pelvis 
  

  

  

  

  17 
  

  

  17 
  

  

  Femur 
  

  

  

  

  14 
  

  

  13 
  

  

  Tibia 
  

  

  

  

  14 
  

  

  13 
  

  

  Tarsus 
  

  

  

  

  9 
  

  

  8 
  

  

  Pes 
  . 
  

  

  

  

  14 
  

  

  13 
  

  

  Habits. 
  — 
  B. 
  ijachypus 
  has 
  much 
  the 
  same 
  habits 
  as 
  

   its 
  congener, 
  but 
  is 
  less 
  particular 
  in 
  the 
  choice 
  of 
  the 
  

   localities. 
  Any 
  sort 
  of 
  pools, 
  warm 
  or 
  cold, 
  clear 
  or 
  

   dirty, 
  with 
  or 
  without 
  vegetation, 
  even 
  the 
  merest 
  

   puddles, 
  appear 
  a 
  satisfactory 
  resort 
  to 
  this 
  lively 
  

   little 
  Batrachian, 
  which 
  may 
  be 
  heard 
  in 
  spring 
  and 
  

   summer 
  uttering 
  its 
  low 
  and 
  mournful 
  note, 
  Jioo, 
  lioo. 
  

   This 
  sound 
  is 
  often 
  produced 
  by 
  large 
  numbers 
  in 
  a 
  

   small 
  pool 
  exposed 
  to 
  the 
  full 
  rays 
  of 
  the 
  sun. 
  Pairing 
  

   takes 
  place 
  two 
  or 
  three 
  times 
  in 
  the 
  year, 
  and 
  spawn 
  

   is 
  mostly 
  found 
  from 
  the 
  end 
  of 
  May 
  to 
  the 
  middle 
  

  

  