Scorpion spider crab
Inachus dorsettensis, commonly known as the scorpion spider crab, is a species of crab generally found on loose substrates from depth down to about.
Description
They are usually seen covered with sponge which they apply themselves. The carapace of a fully grown male is roughly long and slightly narrower than it is long.Inachus dorsettensis resembles the closely related species Inachus phalangium, but has more prominent spines on the carapace. They molt, with the intermolting period being shorter the warmer the water they reside in is.