Here are the neck shots of my sinloans and nelsoni. At the bottom is a cosala sinaloan...all of them look like this one...
Also on this post is one of my adult female nelsoni. I took a side view and an underside shot. You can see better from the sideview that the black ring would not encircle the neck. It would stop right below the jawline. The underside shot shows no white ring. Its harder to see on these since they are amelanistic but I tried my best!
Dave
PS sorry about the aspen on her face. She did a dive into the aspen when I opened her tub!

