﻿PLATE 
  XLI. 
  

   Haliporus 
  equalis 
  (p. 
  285). 
  

  

  Fig. 
  1. 
  Lateral 
  view. 
  

  

  1", 
  ^ 
  . 
  Ventral 
  aspect 
  of 
  male. 
  First 
  pair 
  of 
  pleopoda, 
  with 
  petasma 
  attached 
  and 
  

   thrown 
  back. 
  

  

  1'", 
  $. 
  Ventral 
  aspect 
  of 
  female, 
  showing 
  thelycum. 
  

  

  hr. 
  Branchige, 
  seen 
  in 
  position. 
  

  

  hr". 
  Last 
  three 
  somites 
  of 
  the 
  pleon 
  ; 
  the 
  arthrobranchise 
  of 
  the 
  third 
  and 
  fourth 
  

   pairs 
  of 
  pereiopoda 
  removed, 
  to 
  show 
  the 
  peculiar 
  ducts 
  that 
  connect 
  the 
  

   pleurobranchise 
  with 
  their 
  somites 
  ; 
  mb, 
  mastigobranchia 
  of 
  the 
  third 
  and 
  

   fourth 
  somites. 
  

  

  Haliporus 
  ohliquirostris 
  {p. 
  286). 
  

   2. 
  Lateral 
  aspect. 
  

   2", 
  ?. 
  Ventral 
  aspect 
  of 
  female. 
  

  

  