Parastichopus californicus
yes but only the female ones
It is kosher. Please visit the related link for a list of fish that are recognised as kosher.
Thie Sea Robin, a marine fish, measures in at up to 16" long
They eat shrimp mostly but, I have also found out that they will eat a spinner jig if you give them some. They also eat bivalves and crabs.
Google's Digital Dead Sea Scrolls
Learn About the North Aral Sea Dam
The Galapagos Sea Lion
Fishermen's Life of the Aral Sea Bed in Kazakhstan