RE: NANFA-L-- Micropterus identification

Bruce Stallsmith (
Tue, 18 Jul 2006 23:31:57 -0400

I'm no expert, but I'd vote in favor of most if not all of your young bass
being punctulatus rather than salmoides purely because their lateral
markings aren't-in-all like salmoides (in my humble experience).

--Bruce Stallsmith
along the now-tropical Tennessee
Huntsville, AL, US of A

>From: Dan Johnson <>
>Subject: NANFA-L-- Micropterus identification
>Date: Tue, 18 Jul 2006 20:08:23 -0500
>I'm still trying to get a handle on the Micropterus species in my area.
>For reference, check out links to what I've previously identified as
>largemouth bass:
>and spotted bass:
>The checklist of Freshwater Fish of Texas by Hubbs, et al, states that
>ratios of largest to smallest dorsal spines are as follows:
>2.4 to 3.9 for salmoides
>1.1 to 2.5 for punctulatus (and other species)
>I have annotated these ratios in the captions for all photos where they
>could be measured. All fall in the range for punctulatus.
>punctulatus have teeth on the tongue, salmoides usually doesn't. The
>two fish on the punctulatus page, which I have preserved, have teeth.
>The other fish are not available.
>The peterson guide states that young punctulatus have distinct
>tricolored tails as you can see in some of the younger specimens on the
>salmoides page. I can't remember the reference, but I read salmoides
>young have a more bicolored tail. Peterson doesn't describe the tail
>for young for salmoides.
>I'm starting to wonder if all the fish on my salmoides page are actually
>punctulatus. Any opinions from micropterus experts out there?
>Thanks in advance.
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