Orthogoniata Complex of Homaloptera - ID by Scale Keels

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Martin Thoene
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Orthogoniata Complex of Homaloptera - ID by Scale Keels

Post by Martin Thoene »

Due to the complexity of markings in these species, where no two fish are exactly the same, it can be very difficult to correctly identify the species.

For the aquarist, one of the few ways this can be done is by digitally photographing the fish's scales in the area under the Dorsal fin leading edge, and enlarging the photograph to show detail.

As a guide, here are drawings of the scale keel shapes for four species.

Image

Caption: Orthogoniata Complex Scale Keels
Credit: Martin Thoene (1st photo,design, drawing)
Credit: Mark Macdonald
Credit: Bob Darnell
Credit: Emma Turner
Last edited by Martin Thoene on Tue Oct 10, 2006 7:22 pm, edited 2 times in total.
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Jim Powers
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Post by Jim Powers »

Great info!!
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Martin Thoene
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Post by Martin Thoene »

D'you like my digital ortho at the top? Stupid thing is I think now that somewhere I've got a side on shot :?

Martin.
Image Resistance is futile. You will be assimilated.

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Graeme Robson
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Post by Graeme Robson »

Very handy and helpful. 8)

Great work!
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shari2
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Post by shari2 »

bump
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Jim Powers
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Post by Jim Powers »

Great digital ortho!!
I have seen a shot of your fish from the side, somewhere. :?
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Martin Thoene
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Post by Martin Thoene »

Found it! Edited it into the picture. Would you believe all the foreground pebbles are cloned in? It was a long skinny pic before.

Martin.
Image Resistance is futile. You will be assimilated.

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Martin Thoene
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Post by Martin Thoene »

That's because Martin suddenly saw that he'd left out a 'p' in one Homaloptera so I deleted the picture, re-edited and uploaded it :oops:

Martin.
Image Resistance is futile. You will be assimilated.

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Jim Powers
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Post by Jim Powers »

Great job!
I miss the digital Ortho, though. :wink:
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Jim Powers
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Post by Jim Powers »

I thought I was having conection problems or something. :?

I guess no one is going to know what we were talking about since I had deleted the message saying I didn't see a pic about the time you were posting the above message. :?
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Martin Thoene
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Post by Martin Thoene »

Ahhhhhhhhhh..............

Image Image

Bumped this up Shari. Only way to keep these up is as Announcements.

Martin.
Image Resistance is futile. You will be assimilated.

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