﻿ECHINODERMATA. 
  

  

  173 
  

  

  The 
  Asterids 
  tell 
  a 
  not 
  dissimilar 
  story 
  : 
  of 
  the 
  26 
  species 
  found 
  

   in 
  the 
  intertropical 
  Australian 
  seas, 
  3 
  onl^^, 
  or 
  11-5 
  per 
  cent., 
  wore 
  

   found 
  also 
  at 
  Port 
  Jackson, 
  while 
  8, 
  or 
  30 
  per 
  cent., 
  were 
  found 
  also 
  

   in 
  the 
  western 
  seas. 
  

  

  Opliiuroidea. 
  — 
  Twenty-nine 
  species 
  were 
  found 
  in 
  the 
  intertropical 
  

   Australian 
  seas 
  ; 
  and 
  of 
  those 
  3, 
  or 
  10 
  per 
  cent., 
  were 
  found 
  also 
  at 
  

   Port 
  Jackson, 
  while 
  16, 
  or 
  more 
  than 
  50 
  per 
  cent., 
  were 
  found 
  in 
  

   the 
  western 
  parts 
  of 
  the 
  Indian 
  Ocean. 
  

  

  It 
  is 
  useless, 
  in 
  the 
  present 
  condition 
  of 
  our 
  knowledge, 
  to 
  appeal 
  

   to 
  the 
  Holothuroidea 
  or 
  the 
  Crinoidea. 
  

  

  Table 
  IV. 
  — 
  List 
  of 
  Asteroidea 
  collected 
  by 
  the 
  ' 
  Alert.' 
  

  

  ^ 
  03 
  

  

  

  

  Asterias 
  calamaria 
  

  

  25ol3plax 
  

  

  Echinaster 
  purpureus 
  .... 
  

  

  Metrodira 
  subulata 
  

  

  Linckia 
  laevigata 
  

  

  nodosa 
  

  

  luannorata 
  

  

  multiforis 
  

  

  paiiciforis 
  

  

  diplax 
  

  

  megal 
  oplax 
  

  

  Scytaster 
  variolatus 
  

  

  Ant 
  lienea 
  flavescens 
  

  

  Oreaster 
  gracilis 
  

  

  nodosus 
  

  

  lineki 
  

  

  Stellaster 
  belcheri 
  

  

  incei 
  

  

  Pentagonaster 
  coppingeri 
  

  

  validus 
  

  

  Dorigona 
  longimana 
  

  

  Culcita 
  schmideliana 
  

  

  Gymnasterias 
  carinifera 
  . 
  

  

  Asterina 
  belcheri 
  

  

  calcar 
  

  

  cepheus 
  

  

  gunnii 
  

  

  regularis 
  

  

  brevis 
  

  

  Patiria 
  crassa 
  

  

  Astropecten 
  coppingeri 
  . 
  

  

  polyacanthus 
  

  

  Archaster 
  typicus 
  

  

  Retaster 
  insignis 
  

  

  