ces ae 
928 THE AUSTRALIAN NATURALIST. 
some previous observations of a curious phenomenon in con- 
nection with the spawning of the Rainbow Trout. 
A sexually mature female measuring I4in. in length (a 
fish which was probably even mature in the previous year), 
was opened by me and was found to contain ova in the very 
earliest stages—chiefly less than a millimeter in diameter. I 
should say that there was no likelihood of this fish spawning 
during the ensuing season; nor did it seem that she had 
spawned in the preceding seas, as the ovaries were in very 
nearly the same early developmental stages which one finds 
even in yearlings (allowing for difference in size of the fish). 
- The fish was quite normal-looking, was not diseased or 
unusually parasitised, and there appears, therefore, to be no 
reason why it should not ultimately have spawned—perhaps 
in thé next season. Therefore, and though there has been 
some doubt, I have set this down at present as merely tem- 
porary sterility. 
_ It may be mentioned in this connection, that recent. ob- 
servations carried out in Britain have chown that individual 
Salmon (Salmo salar) frequently do not spawn annually, and 
that, apparently, they may even go for two or three years 
without spawning. 
As the occurrence or otherwise of this phenomenon is 
of great importance to fish culturists, close observations 
will be made with our Trout in this and succeeding spawning 
DAVID G. STEAD. 
seasons. 
Banance SHEET, YEAR Enpine 318sv JULY, 1913. 
lV Spt RECEIPTS. wae ok 
NosBalancoptumretec tise tt) 8.0). p .eokee conte ped O Lee Ogee 
pea oltereny Phrenic So TSU Sy ag RRS ee peeked tee ol 
j, Aquarium Society .. 14.9... .. 4. 4. . 3 19 10 
,, Subscriptions pre amiricy oir tty el O Liner 
,, Advertisements in Journal Seer d ie as ek © 
;, Interest Savings Bank .. aN gavin Vs DatAey 3 
£163 15 1 
: DISBURSEMENTS. 
By Rent of Hall .. 10 5 O 
,, Printing Journal .. Be ye Ge) 
,, Typing and Posting Notices, Journal, etc. .. 20 5 9 
,, Postages and Petty Cash ‘ 6 19 3 
pebelanceming banks aenr Slee r 92 11 fe) ; 
,, Cash in Hand oy et ae 2 iw “ 
ae EE 
£163 15 10 
Examined and found correct. 
C. H. WICKHAM 
A. S. le SOUEF H. E. FINCKH, 
Hon Auditors. Hon. Treasurer. 
> 
