lieber  die  Acdimä(isatioii  der  Salmoneer  in  Australien  und  Neu-Seeland, 
371 
»Während  des  verflossenen  Jahres  1866/67  haben  die  Forellen  von 
1864  in  den  Teichen  und  noch  mehr  im  freien  Flusse  auf  erstaunliche 
Weise  an  Wachsthum  zugenommen.  Im  Juni  1867  wurde  eine  todte 
Forelle  aufgefunden,  welche  eine  Länge  von  1 9 1 /2  Zoll  und  ein  Gewicht 
von  3y2  Pfund  besass.  Am  29.  Juli  1867  wurde  eine  Forelle  gefangen, 
welche  durch  das  Laichen  mager  und  abgezehrt  war,  aber  doch  noch 
bei  einer  Länge  von  22  y4  Zoll  volle  4 Pfund  wog,  und  im  normalen 
Zustande  gewiss  5 bis  6 Pfund  gewogen  haben  mag.  Auch  sind  noch 
andere  Forellen  ähnlicher  Grösse  im  Plenty  gesehen  worden.  Diese  so 
rasch  im  Wachsthum  fortgeschrittenen  Forellen  haben  am  23.  Juni 
1867  in  dem  in  den  Teich  einfliessenden  Bächlein  zum  zweiten  Male 
gelaicht,  zu  gleicher  Zeit  wurden  auch  einige  mit  dem  Herrichten  von 
Laichplätzen  beschäftigte  Forellen  im  benachbarten  Flusse  beobachtet. 
Das  Laichen  dieser  Forellen  währte  ohngefähr  6 Wochen  und  endigte 
zu  Anfang  August1).« 
Soweit  lauten  die  Berichte  der  oben  angeführten  Tasmanian- 
Gorninission.  Herr  Lindon  hat  mir  noch  ausserdem  aus  einem  Schrei- 
ben (vom  15,  Juli  1868)  des  Vorstandes  dieser  Commission  an  Herrn 
VotJL  verschiedenes  mitgetheilt,  was  ich  als  beachtenswerth  hier  wie- 
hatching-boxes  prepared  for  the  reception  of  the  ova  forwarded  to  Victoria  having  been 
erected  on  a spot , which  proved  to  be  subject  to  inundation,  were  shortly  aßerwards 
icith  their  contents  swepl  away  by  a flood.  Of  those  despatched  to  Laune aston , although 
conveyed  by  Mr.  Ramsbottom  in  person , a large  number  perished  on  the  way.  From 
the  remainder  only  a few  living  Trout  were  produced,  and  these , after  attaining  a con- 
siderable  size , were , as  in  Victoria,  carried  away  by  an  overflow  of  the  stream  near 
which  the  hatching-boxes  had  been  constructed , from  those  retained  under  Mr.  Rams- 
bollom’s  immediate  Charge  about  4 0 young  Trout  only  have  been  obtained,  which  will 
tu  l hat  extent  add  to  the  number  of  breeding  fish  for  the  season  of  4868.« 
-1 ) Ebenda  : » Düring  the  past  year  many  of  the  parent  trout  detained  in  the  ponds, 
and  still  more  those  at  large  injhe  Plenty,  have  increased  in  size  and  weight  at  a mr - 
prising,  and  Ute  Commissioners  beleive  unprecedented  rate.  In  June  last  \ 867  a male 
h old  was  found  dead  in  the  Plenty,  evidently  kitled  in  an  oncounter  with  sonne  of  üs 
associates  during  the  exciting  season  of  spawning,  which  measured  4 9 1/%  inches  in 
length,  and  weighed  Mj^pounds . On  the  29lhJuly  last  1867  another  was  captured  alive 
by  Mr.  Ramsbottom , of  which  the  length  was  221/4  inches,  and  the  weight  fully  4 fits. 
although  the  fish  was  then  in  a spent  and  consequently  lean  condition,  having  but  re~ 
cently  shed  its  milt . If  in  full  condition,  Mr.  Ramsbottom  estimates  thal  the  weight  of 
fius  fish  would  have  been  behexen  5 — 6 ff  s.  Many  others  have  been  seen  in  the  Plenty  of 
slmilar  dimensions.  The  Trout  thus  greatly  increased  in  size  began  to  späten  for  the 
second  Urne  in  the  rivulei  attached  to  the  pond  on  the  28.  June,  and  at  the  same  time 
some  of  those  at  large  in  the  adjoining  river  were  observed  busily  engaged  in  forming 
their  nests  and  depositing  their  ova . The  season  of  spawning  extended  over  a period  of 
about  six  weeks,  terminating  on  the  6.  August .« 
