﻿EXPLANATIOIT 
  OF 
  THE 
  PLATES. 
  679 
  

  

  ECHINODERMS. 
  

  

  Plate 
  XLV. 
  

   Fig, 
  a. 
  Neoplax 
  opldodes, 
  x 
  2. 
  

  

  6. 
  Arm-joints 
  of 
  ditto, 
  seen 
  from 
  above, 
  x 
  4. 
  

  

  c. 
  The 
  same, 
  from 
  the 
  side, 
  x 
  4. 
  

  

  d. 
  The 
  same, 
  from 
  below, 
  x 
  4. 
  

  

  e. 
  Lower 
  surface 
  of 
  disk, 
  x 
  4. 
  

  

  CRUSTACEA. 
  

  

  Plate 
  XLYI. 
  

  

  Fig. 
  A. 
  Achceus 
  lavioculis, 
  J 
  , 
  X 
  5. 
  a, 
  chelipede, 
  x 
  5. 
  

  

  B. 
  Stilbognat7ii(s 
  martensi, 
  adult 
  c? 
  , 
  x 
  2. 
  b, 
  buccal 
  and 
  anten- 
  

   nal 
  regions, 
  showing 
  the 
  form 
  of 
  the 
  joints 
  of 
  the 
  outer 
  

   maxillipede 
  &c., 
  x3; 
  6', 
  chelipede, 
  x2|. 
  

  

  Plate 
  XLVII. 
  

   Fig. 
  A. 
  Eurynome 
  stimpsonii, 
  c? 
  , 
  x 
  4. 
  a, 
  chelipede, 
  x 
  6. 
  

  

  B. 
  Entomonyx 
  sj)i7iosus, 
  x3g. 
  b, 
  inferior 
  view 
  of 
  antennal 
  

   region^ 
  showing 
  the 
  form 
  of 
  the 
  basal 
  antennal 
  joint, 
  

   X 
  4| 
  ; 
  6', 
  postabdomen, 
  x 
  4 
  ; 
  6", 
  chelipede, 
  x 
  4. 
  

  

  Plate 
  XLVIII. 
  

  

  Fig. 
  A. 
  Frontal 
  region 
  of 
  Xiphonectes 
  vigilans, 
  var. 
  obtusidentatus, 
  

   showing 
  the 
  form 
  of 
  the 
  marginal 
  teeth, 
  x 
  5. 
  

  

  B. 
  Thalamita 
  quadrilohata, 
  adult 
  c? 
  . 
  6, 
  chelipede, 
  

  

  C. 
  Carcinoplax 
  Integra, 
  $ 
  , 
  X 
  5, 
  c, 
  inferior 
  view 
  of 
  frontal 
  

  

  and 
  antennal 
  region, 
  showing 
  the 
  form 
  of 
  the 
  peduncular 
  

   joints 
  of 
  the 
  antennae 
  and 
  the 
  merus 
  of 
  the 
  maxillipedes 
  ; 
  

   c', 
  chelipede, 
  x7. 
  

  

  