As I said, start with the rattle and general coloration. If you have melanistic specimens, coloration will not be helpful. The most certain method to tell crotalus from sistrurus OR agkistrodon is the scales on the head. Crotalus has small asymmetrical head scales, while agkistrodon has large symmetrical scales. Sistrurus and Agkistrodon have nine large plates on the top of the head, while crotalus has mostly small scales.Under the rules, you may not be tested on any taxa more specific than those on the list. This won't stop people from asking though, so being somewhat prepared is not a bad idea. Also the differences on the head scales is crotalus and sistrurus not crotalus and agkistrodon. The same goes for general coloration. To tell the difference between Crotalus+Sistrurus from Agkistrodon, you first look for the rattle, check to see if the head is a copper color (copperhead), and if the mouth is open with white it is a cotton mouth. The cotton mouth also has a golden lure like tail tip. They also have fairly distinguishable nonspecific traits.
Where did you get the idea that you aren't supposed to have snakes in division B? You had them last year (which was the first time this event has run since 2001) because you ARE supposed to.I love this event, but I have a question. Does anyone else have snakes in devision B? We arn't suppost to, but we seem to every year. please respond.
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