A sight that caused me to drop my shells, sea-urchin and all, as if they had been pieces of red-hot iron.
On my way to the front of the peninsula, I looked for “sea-urchin,” but none fell in my way.
From these larval stages the adult or fully developed starfish or sea-urchin develops by very great changes or metamorphoses.
The body of the sea-urchin is furnished with a species of spine.
To make things still more certain, he replaced the female nucleus with a male one from a different variety of sea-urchin.
One of the most singular organs of the sea-urchin is its mouth.
Sub-kingdom IV, Echinodermata, a large number of marine animals, such as the star-fish and the sea-urchin.
The sea-urchin has evolved from the star by folding the arms into a ball.
And of migratory fish there are the purple-fish, the sweet purple-fish, the sea-urchin, the strobelus.
Then, using the sea-urchin as an interpreter, they questioned the starfish.