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
Columbus Ohio USA <))><
/"Unless stated otherwise, comments made on this list do not necessarily
/ reflect the beliefs or goals of the North American Native Fishes
/ This is the discussion list of the North American Native Fishes Association
/ nanfa_at_aquaria.net. To subscribe, unsubscribe, or get help, send the word
/ subscribe, unsubscribe, or help in the body (not subject) of an email to
/ nanfa-request_at_aquaria.net. For a digest version, send the command to
/ nanfa-digest-request_at_aquaria.net instead.
/ For more information about NANFA, visit our web page, http://www.nanfa.org