No, while crabs are indeed invertebrates thy have a carapace not a skin.
Echinodermata
Hedgehog, Porcipine,
Sea urchin
A spiny skinned invertebrate is called a sand dollar. That is because they are are echinoderms (a type of invertebrate),
It is called an Exoskeleton.
Butterfly, worm, jellyfish, spider, sponge, starfish, and to much more to type.
invertebrate
An invertebrate that has a soft body and a shell is called exosceloton.
a young invertebrate If its form differs significantly from that of the adult, it is a larva (pl larvae). E.g. caterpillar to butterfly.
vertebre;backbone;or if no backbone; invertebrate
they are put into a group called invertebrate's
A dragonfly is an invertebrate because it has an exoskeleton on the outside of its body instead of an internal skeleton with a backbone.
The creatures with backbones are called vertebra. The creatures without backbone are called invertebrate.
it is actually called an invertebrate, and invertebrate is an animal without a back bone e.g. a worm, and a vertebrate has a back bone e.g. humans
invertebrate - has exoskeleton