snake squash and yellow rudbeckia

I can't remember the real name of this squash variety. It looks like a fat, green snake. John asked me what it was when he spotted it in the garden, and I couldn't answer, because I'd  forgotten I'd even planted it.  I'll come across its name eventually, but for now it's snake squash. The flowers in the middle are some sort of rudbeckia  (with green centers) and the green leaves are from a clump of wild violets.

P.S. August 14: Kathy Robins wrote to tell me that this is Tromboncino squash.