Assertion: spadefoot's egg | /r/CapableOf | surround by two jelly layers
Facets:
Source sentences:
text: Eggs are black above and white below, about 1.5 to 1.6 millimeters in diameter and surrounded by two jelly layers, and deposited in elliptical masses of 10 to 250 eggs.
text: No other Montana amphibian has small (less than 4.0 millimeters) pigmented eggs surrounded in two jelly layers that are laid singly or in short linear or globular clusters.