plus a 150mm> Mogurnda which I immediately recognised as
trouble and put back.
You just don't know a good thing when it bites you on the foot! :-)
I gather from your first post that it is only the Running Cks that look
similar to herbies?
______________________________________________________
Peter
Yeah, I love telling Bryan Pierce about that Mogurnda - he is
desparate to get hold of some Cape York types. Not for me though,
too big, too ugly and too hungry, apart from what they would do to a
planted tank.
The Running Ck fish are certainly the tribe closest in colour to the
Herbies. Pappin Ck is not far away in terms of km. but the two creeks
drain in different directions and are probably isolated, even during
'BIG wets'.
I would say that differences between RC tri's and Herbies could
be obvious with the two fish together, the later being more compact
and heavier bodied, but then again, we get back to population
variation and perception.
I have often ruminated about the dynamics of speciation. In the
relatively stable environment of Cape York, life is a breeze and
every puddle of water contains a different colour form. In time, and
assuming continuing isolation, new species may form.
In contrast, continued existance is a never ending struggle in a
desert environment and the opportunities for speciation is
reduced - all their energy goes into just surviving. Over wide areas
of the Pilbara, the Mel.spledida sp. is identical in appearance.
What are your observations and opinion ??
Regards
Keith