I left it on the vine a good long time, hoping it would get bigger. It did not. I finally harvested it when I could smell it when I strolled past. It was starting to attract the attention of small, boring insects as well, who had just started an attack on the dirt-side of the rind. . . . No matter, though; they didn't get far.
Oh well! I've saved the seeds and will try again next year. I think I'll put them over where the cucumbers grew so extravagantly this year!
[sigh. . . .] I had such high hopes when I first wrote about the melons [heh! melons. . . .] back in May. . . .