I suspect that the spectrum of gudgeons that look similar to yours will need
to be carefully assessed in the future when someone has the interest and
time now that we have a few more technological "tools" available to us.
Perhaps Peter Unmack might do us a little table of differences like he did
for the "Carp Gudgeon" group sometime.
I have seen a collection of slides from Neil Armstrong that features Purple
Spotted Gudgeons from several places in Australia and they are very
different fish morphologically as well as in colour pattern. From memory
your fish sounds like the picture I have in my mind of the form from the
Barcoo River.
Regards,
Bruce.
Bruce Hansen, A.N.G.F.A., Advancing Australian Aquatics.
Bruce Hansen, ANGFA, caring for our aquatic ecosystems.
Please visit us at http://www.ozemail.com.au/~fisher/angfa.htm
-----Original Message-----
From: Monty Newman <monty at effect.net.au>
To: Rainbowfish Mailing List <rainbowfish at pcug.org.au>
Date: Tuesday, 19 January 1999 22:43
Subject: [RML] \Gudeon.gif
>
>If you can identify the Gudeon from this picture & my comments then please
>tell me (especially those of you with easy reference to the reference
>literature and specimens). The notes again ... This fish is identified in
>the book as a Northern Trout Gudeon or Purple spotted Gudeon. I have marked
>major places of difference.
>A mine has a blunter, more bull nose head
>B the fin starts further forward
>C mine has a number of brownish purple spots around the eye
> There are four lines of colour running down from the eye towards pectoral
>fin
>D gap between spinous & soft rayed dorsal fins is larger.
>E body decoration different, no blue, but scattered brown spots like
>freckles.
>& pelvic fin points down more.
>This fish was moved into this tank last September, it has an alkaline pH
>(~7.4).
>