mud skipper and any shell fishes .
What are adaptacions of a crab spider
a crab or a shrimp or a snail
a crab
it is jerboa
lobter
it has no Structural adaptations
It has gill chambers to store water so that they can breathe using dissolved oxygen from the water while on land.
gills
Crabs can hold a little puddle of water over there gills, this allows them to be out of water and still breath. It is an adaptation to the inter-tidal zone so they can live for a time out of water.
Some spiders and insects that live in part underwater carry air bubbles with them to breathe through.
Digs holes in the ground to be safe from predators.
A crab is an invertebrate and is an animal, not a plant.