Originally Posted by bssknox
What would be the technical term for these jelly masses without the fertilized egg?
That's a good question. I'm not sure if there is a technical term other than "jelly." The jelly around the eggs is deposited around the eggs as they pass through the female's oviducts. So, while we tend to think of them as individual balls of jelly around each egg, the jelly is actually more a tube that then swells together as it absorbs water. The proteins bind to some extent in the process, so they look like a mass rather than a string. But toads lay eggs as string and, functionally, that's the same mechanics. Some species have less stringy jelly and sometimes one or two of the first or last eggs to be laid might separate from the batch (like the singleton in your photo), though.
So the 'blanks' might just be hiccups in the process of oviposition.