In Hebrew it's called a דלורית and the Hebrew wikipedea gives its latin name as Cucurbita moschata. It's also known as a butternut squash.
Recently my husband noticed it and was afraid it would spoil before I'd get around to feeling "inspired." Inspired I was last Friday when cooking for Shabbat.
As you can see from the picture, I split it in half and took out the seeds. Then I chopped up some cabbage, onion and tomato.