﻿680 
  explanatiox 
  of 
  the 
  plates. 
  

  

  Plate 
  XLIX. 
  

  

  Fig. 
  A. 
  Philyra 
  rectangvlaris, 
  5 
  , 
  X 
  5. 
  a, 
  outer 
  maxilHpede. 
  

  

  B. 
  PseudoplnJyra 
  poUta, 
  c5", 
  x3|. 
  &, 
  postabdomen, 
  X 
  3| 
  ; 
  b\ 
  

  

  outer 
  maxillipede. 
  

  

  C. 
  Cymopolia 
  luhitet, 
  adult 
  $ 
  , 
  x 
  3. 
  c, 
  postabdomen, 
  x 
  4. 
  

  

  Plate 
  L. 
  

  

  Pig. 
  A. 
  Dromidia 
  spongiosa, 
  var. 
  stimpsonii, 
  adult 
  § 
  , 
  X 
  iJ. 
  «, 
  outer 
  

   view 
  of 
  cbelipede, 
  x 
  2^. 
  

  

  B. 
  Homalodromia 
  coppingeri, 
  adult 
  5 
  , 
  X 
  4. 
  6, 
  inferior 
  view 
  

   of 
  the 
  frontal, 
  antennal, 
  and 
  part 
  of 
  the 
  buccal 
  region, 
  

   showing 
  the 
  form 
  of 
  the 
  epistoma, 
  the 
  nearly 
  smooth 
  en- 
  

   dostome, 
  &c. 
  ; 
  6', 
  part 
  of 
  the 
  sternal 
  surface, 
  showing 
  the 
  

   sternal 
  tubercles 
  ; 
  h", 
  outer 
  view 
  of 
  chelipede. 
  x 
  7. 
  

  

  Plate 
  LI. 
  

  

  Fig. 
  A. 
  Munida 
  ediuardsi, 
  adult 
  (5" 
  , 
  x 
  4. 
  a, 
  dactylus 
  of 
  an 
  am- 
  

   bulatory 
  leg. 
  

  

  B. 
  Frontal 
  and 
  antennal 
  region 
  of 
  Pontonia 
  brevirostris, 
  c? 
  , 
  

   dorsal 
  view, 
  showing 
  the 
  form 
  of 
  the 
  small 
  rostrum, 
  the 
  

   peduncular 
  joints 
  of 
  the 
  antennules, 
  &c. 
  b, 
  terminal 
  

   segment 
  and 
  uropoda 
  ; 
  b', 
  outer 
  maxillipede 
  ; 
  b", 
  cheli- 
  

   pede 
  of 
  the 
  first 
  pair 
  ; 
  b'", 
  chelipede 
  of 
  the 
  second 
  pair 
  ; 
  

   6"", 
  ambulatory 
  leg 
  (next 
  after 
  chelipedes), 
  showing 
  the 
  

   form 
  of 
  the 
  dactylus. 
  

  

  Plate 
  LII. 
  

  

  Fig. 
  A. 
  Penceus 
  ricJitersi, 
  c?, 
  x3. 
  a, 
  dorsal 
  view 
  of 
  the 
  frontal 
  

   and 
  antennal 
  region, 
  showing 
  the 
  form 
  of 
  the 
  eye-peduncles 
  

   and 
  antennules 
  and 
  antennal 
  scales 
  ; 
  a', 
  terminal 
  seg- 
  

   ment 
  and 
  uropoda. 
  

  

  B. 
  Gonodactijlus 
  elegans, 
  $ 
  , 
  X 
  3. 
  b, 
  lateral 
  view 
  of 
  the 
  

   raptorial 
  limb 
  (second 
  maxillipede), 
  x3|. 
  

  

  