﻿PLATE 
  X. 
  

  

  Arctus 
  tuherculatus 
  (]>. 
  70). 
  

   Fig. 
  1. 
  Liiteral 
  view 
  ; 
  uatunil 
  size. 
  

   ,, 
  2. 
  Dorsal 
  view 
  ; 
  enhu-ged 
  three 
  times. 
  

   ,, 
  \o 
  $ 
  . 
  Fifth 
  pair 
  nf 
  percioiioihi 
  of 
  the 
  male. 
  

   ,, 
  lo?. 
  Fifth 
  2)air 
  of 
  pcr('i()po(hi 
  of 
  the 
  female. 
  

  

  Arctus 
  t'm'matiini.s 
  (ji. 
  71). 
  

   ,, 
  :1 
  Dorsal 
  aspei-t 
  of 
  a 
  sjvecimeii 
  ; 
  enlarged 
  four 
  times. 
  

   „ 
  3". 
  Ventral 
  aspect 
  of 
  pereioii. 
  

  

  Arctus 
  pijijince 
  us 
  (p. 
  73). 
  

   „ 
  4?. 
  Dorsal 
  as[)ect 
  of 
  a 
  female; 
  enlarged 
  four 
  and 
  a 
  half 
  times. 
  

   ,, 
  4r. 
  Seeond 
  antenna. 
  

  

  ,, 
  4^. 
  Third 
  ])le(ipod 
  and 
  st3'laml)lys; 
  the 
  latter 
  detaehed 
  and 
  magnified. 
  

   ,, 
  4r. 
  Brephalo.s; 
  extracted 
  from 
  the 
  ovum. 
  

  

  