No, the rigid outer covering of arthropods is usually called the exoskeleton. In Biology the mantle is a major anatomical component of a different phylum - molluscs, the tissue which contains the internal organs and in many molluscs responsible for secreting the mineralized outer shell.
Crayfish are crustaceans, and therefore have a shell-like outer covering called an exoskeleton.
It is called the exosketon. It is made from a hard protein, chitin, which arthropods often biomineralize for further strength.
The exoskeleton.exoskeleton
The outer covering of the grain is called Husk.
The external covering on arthropods is called the exoskeleton (or cuticle). It is made of a tough protein called chitin, a long chain polymer comparable to cellulose. Because it's inflexible, arthropods need to shed it (moult) in order to grow.
All arthropods have the followingcharacteristics.1. A hard outer body covering called an exoskeleton.2. Specialized mouth parts3. Jointed legs4. Compound Eyes5. Segmented body__ Nissy 2012
All arthropods have the followingcharacteristics.1. A hard outer body covering called an exoskeleton.2. Specialized mouth parts3. Jointed legs4. Compound Eyes5. Segmented body__ Nissy 2012
Tonoplast is the outer covering of vacuole
Tonoplast is the outer covering of vacuole
The outer covering of the grain is called Husk.
Endoskeleton
The tough outer covering of Euglena, and Paramecium is called the Pellicle