﻿INTEGUMENT. 
  

  

  21 
  

  

  III. 
  Integument. 
  

  

  The 
  integument 
  of 
  the 
  Ecaudata 
  differs 
  from 
  that 
  

   of 
  other 
  Batrachians 
  in 
  the 
  slis^ht 
  attachment 
  to 
  the 
  

  

  Fig. 
  8. 
  

  

  Rana 
  temporaria, 
  showing 
  the 
  dermal 
  attachments 
  and 
  the 
  dis- 
  

   position 
  of 
  the 
  lymph- 
  sacs, 
  upper 
  and 
  lower 
  views. 
  The 
  position 
  

   of 
  the 
  lymph-hearts 
  is 
  indicated 
  by 
  asterisks. 
  

  

  a. 
  

  

  Abdominal 
  sac. 
  

  

  b. 
  

  

  Brachial 
  ,, 
  

  

  c. 
  

  

  Crural 
  ,, 
  

  

  d. 
  

  

  Dorsal 
  ,, 
  

  

  /. 
  

  

  Femoral 
  „ 
  

  

  g. 
  Gular 
  sac. 
  

  

  if. 
  Interfemoral 
  ,, 
  

   I. 
  Lateral 
  ,, 
  

  

  p. 
  Pectoral 
  ,, 
  

  

  sh. 
  Subbrachial 
  sac. 
  

   shp. 
  Subplantar 
  ,, 
  

   sf. 
  Supra-femoral 
  „ 
  

   sp. 
  Supra-plantar 
  „ 
  

  

  muscles, 
  thus 
  rendering 
  the 
  skinning 
  of 
  a 
  frog 
  a 
  most 
  

   easy 
  operation. 
  But 
  the 
  body 
  is 
  not 
  enclosed 
  in 
  a 
  

   loose 
  sac, 
  as 
  is 
  often 
  stated 
  in 
  popular 
  descriptions 
  ; 
  

   there 
  are 
  definite 
  lines 
  of 
  attachment 
  (Fig. 
  8) 
  by 
  

   means 
  of 
  connective 
  tissue, 
  which 
  form 
  the 
  demarca- 
  

  

  