Thanks for the site, Kay. I didn't see it there, but Bihai at the Aroid forum says it looks like wentii and I think that's it. Looks like it to me, once I looked it up.
I have to go every week to see what plants this dollar store gets in. I've gotten hoyas and anthuriums and 3 kinds of alocasias there...lots of others. Also baby Giant Bird of Paradise. They have all grown really well too.