﻿PLATE 
  XXIX. 
  

  

  Spongicola 
  venusta 
  (p. 
  213). 
  

  

  Fig. 
  1, 
  $. 
  Lateral 
  view 
  (length, 
  25 
  mm.); 
  enlarged 
  four 
  times. 
  

  

  ,, 
  2v. 
  Brephalos, 
  in 
  Zoea 
  form 
  (p. 
  216). 
  

  

  „ 
  3c. 
  Ceplialon. 
  The 
  lateral 
  wall 
  of 
  carapace 
  removed 
  to 
  show 
  branchiae 
  in 
  position. 
  

  

  ,, 
  e. 
  First 
  siagnopod. 
  

  

  ,, 
  f. 
  Second 
  siagnopod. 
  

  

  ,, 
  g. 
  Third 
  siagnopod. 
  

  

  ,, 
  h. 
  First 
  gnathopod. 
  

  

  ,, 
  i. 
  Second 
  gnathopod. 
  

  

  ,, 
  i". 
  Coxa, 
  basis, 
  and 
  part 
  of 
  ischium 
  of 
  the 
  same 
  enlarged 
  ; 
  ec, 
  rudimentary 
  basec- 
  

   physis 
  ; 
  mb, 
  rudimentary 
  mastigobranchia 
  ; 
  arthh, 
  arthrobranchia. 
  

  

  ,, 
  i. 
  Branchiae 
  of 
  same 
  ; 
  mb, 
  mastigobranchise 
  ; 
  a,p, 
  anterior 
  and 
  posterior 
  arthro- 
  

   branchise 
  ; 
  pi, 
  pleurobranchia 
  ; 
  pdh, 
  podobranchia. 
  

  

  ,, 
  k. 
  Branchiae 
  of 
  first 
  pereiopod, 
  letters 
  as 
  before. 
  

  

  ,, 
  I. 
  Branchiae 
  of 
  second 
  pereiopod, 
  letters 
  as 
  before. 
  

  

  ,, 
  m. 
  Branchiae 
  of 
  third 
  pereiopod, 
  letters 
  as 
  before. 
  

  

  ,, 
  n. 
  Branchiae 
  of 
  fourth 
  pereiojiod, 
  letters 
  as 
  before. 
  

  

  ,, 
  0, 
  'pi. 
  Pleurobranchia 
  of 
  the 
  fifth 
  pereiopod. 
  

  

  „ 
  V, 
  z, 
  V. 
  Ehipidura 
  ; 
  v,v, 
  sixth 
  pair 
  of 
  pleopoda 
  ; 
  z, 
  telson. 
  

  

  