Sea-cucumbers sentence example
Eschscholtz at the Marshall Islands in 1825, Balanoglossus was described as a worm-like animal belonging to the Echinoderm order of Holothurians or sea-cucumbers.
The Tornaria larva offers a certain similarity to larvae of Echinoderms (sea-urchins, star-fishes, and sea-cucumbers), and when first discovered was so described.
It includes the ancient crinoids, sea urchins, starfish and brittlestars and sea cucumbers.
Larvae of other echinoderms are also present in the plankton, like those of sea urchins, sea cucumbers and brittle stars.Advertisement