Wow, that's interesting. Is this a potential way to distinguish notatus
from olivaceus? Oh, maybe you think your Jackson fishes _are_ notatus?
Anyway, if olivaceus typically has less sexual dimorphism, that may help
distinguish it from notatus. Seems like I have observed the same thing in
fishes from Arkansas and Tennesee. I think that those of mine were
olivaceus, but I don't claim to have any particular skill at distinguishing
them except by range maps. How did these things get to be two different
species, anyway?!
Mark
Columbus Ohio USA <))><
mbinkley_at_columbus.rr.com
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