﻿880 
  Transactions. 
  — 
  Zoology. 
  

  

  numerous 
  rows 
  of 
  simple 
  hooked 
  teeth 
  ; 
  gizzard 
  strengthened 
  with 
  large 
  

   triangular 
  calcareous 
  plates 
  ; 
  shell 
  none. 
  

  

  Like 
  many 
  of 
  the 
  species 
  of 
  the 
  allied 
  genus 
  Aplysia, 
  this 
  animal 
  

   possesses 
  the 
  power 
  of 
  emitting 
  a 
  purple 
  fluid 
  from 
  the 
  edges 
  of 
  the 
  mantle, 
  

   but 
  only 
  in 
  small 
  quantity; 
  and 
  it 
  may 
  often 
  be 
  handled 
  without 
  anything 
  

   of 
  the 
  kind 
  being 
  observed. 
  All 
  my 
  specimens 
  are 
  from 
  Auckland 
  Harbour, 
  

   and 
  were 
  obtained 
  from 
  rather 
  sandy 
  localities 
  near 
  the 
  extreme 
  verge 
  of 
  

   low-water 
  mark. 
  

  

  EXPLANATION 
  OF 
  PLA.TE 
  XVI. 
  

  

  Fig. 
  1. 
  Pleurohranchus 
  ornaUis. 
  

  

  2. 
  Shell 
  of 
  the 
  same. 
  

  

  3. 
  Fleurobranchaa 
  novcs-zealandice. 
  

  

  4. 
  Aclesia 
  glauca. 
  

  

  Art. 
  LII. 
  — 
  Our 
  Fish 
  Supply. 
  By 
  P. 
  Thomson. 
  

   \_Read 
  before 
  the 
  Otago 
  Institute, 
  13th 
  August, 
  1878.] 
  

   I 
  BEG 
  to 
  lay 
  before 
  the 
  members 
  of 
  the 
  Institute 
  the 
  third 
  and 
  concluding 
  

   series 
  of 
  my 
  notes 
  on 
  the 
  Dunedin 
  Fish 
  Supply.* 
  I 
  think 
  enough 
  has 
  

   been 
  done 
  to 
  show 
  the 
  times 
  and 
  seasons 
  of 
  the 
  principal 
  food 
  fishes 
  of 
  this 
  

   part 
  of 
  the 
  colony 
  ; 
  and 
  if 
  some 
  one 
  will 
  take 
  up 
  a 
  similar 
  duty 
  for 
  a 
  port 
  

   in 
  the 
  north, 
  say 
  Auckland, 
  and 
  another 
  for 
  one 
  in 
  the 
  middle 
  of 
  the 
  

   colony, 
  say 
  Wellington, 
  a 
  very 
  good 
  idea 
  may 
  then 
  be 
  had 
  of 
  the 
  whole 
  

   question. 
  

  

  The 
  most 
  important 
  event 
  of 
  the 
  past 
  year 
  in 
  connection 
  with 
  my 
  

   subject, 
  was 
  the 
  passing 
  of 
  an 
  Act 
  regulating 
  Fisheries, 
  by 
  the 
  Colonial 
  

   Legislature. 
  It 
  may 
  be 
  thought 
  presumptuous 
  on 
  my 
  part, 
  but 
  I 
  must 
  take 
  

   a 
  little 
  credit 
  in 
  having 
  at 
  least 
  assisted 
  in 
  bringing 
  this 
  about. 
  A 
  little 
  

   stir 
  has 
  been 
  induced, 
  both 
  among 
  the 
  fishermen 
  and 
  the 
  dealers, 
  by 
  the 
  

   fact 
  of 
  some 
  one 
  being 
  in 
  their 
  midst 
  who 
  was 
  " 
  taking 
  notes." 
  During 
  the 
  

   past 
  year 
  or 
  two 
  I 
  have 
  been 
  in 
  frequent 
  communication 
  with 
  the 
  dealers, 
  

   as 
  well 
  as 
  by 
  paragraphs 
  in 
  the 
  Press, 
  urging 
  the 
  necessity 
  of 
  steps 
  being 
  

   taken 
  to 
  preserve 
  the 
  fisheries 
  in 
  the 
  harbour 
  from 
  utter 
  destruction, 
  by 
  

   either 
  refusing 
  to 
  take 
  from 
  the 
  fishermen 
  any 
  fish 
  under 
  a 
  certain 
  size, 
  or 
  

   agreeing 
  among 
  themselves 
  to 
  refuse 
  dealing 
  with 
  those 
  who 
  persisted 
  in 
  

   bringing 
  undersized 
  fish 
  to 
  town. 
  The 
  Act 
  was 
  rather 
  a 
  surprise, 
  as 
  no 
  one 
  

   here 
  knew 
  of 
  its 
  introduction 
  to 
  the 
  House 
  until 
  it 
  had 
  passed 
  its 
  second 
  

   reading, 
  and 
  in 
  the 
  hurry 
  at 
  the 
  close 
  of 
  the 
  session 
  there 
  was 
  no 
  time 
  for 
  

  

  * 
  Vide 
  Traus. 
  N.Z. 
  Inst., 
  Vol. 
  IX., 
  Art. 
  LXVII. 
  and 
  Vol. 
  X., 
  Art. 
  XLIV, 
  

  

  