These are a pair of chitinous rods which lie ventral to the notochord and in the collar region unite to form a single mass.
Scutes: the chitinous shields or plates on the segments of larvae.
It is easily recognized by the chitinous shield attached to the ventral (posterior) surface.
The chitinous covering of this harvesting-ant is firm and hard.
Animals possessing an external skeleton composed of chitinous rings, or somites, and provided with articulated limbs.
The chitinous object he had picked up now shook and quivered of itself.
The origin of the mid-gut (mesenteron), that has no chitinous lining in the developed insect, is the disputed point.
The uneasy rustling of chitinous arms against white robes recalled him from his meditation.
Armatus: set with spines, claws or other chitinous processes.
During this post-embryonic development and growth they molt (shed the chitinous exoskeleton) five times.
1836, from French chitine, from Greek khiton "frock, tunic," of soldiers, "coat of mail," used metaphorically for "any coat or covering." "Probably an Oriental word" [Liddell & Scott]. Klein compares Hebrew kuttoneth, Aramaic kittana, Arabic kattan "linen."
chitin chi·tin (kīt'n)
A tough, protective, semitransparent polysaccharide forming the principal component of arthropod exoskeletons and the cell walls of certain fungi.
A tough, semitransparent substance that is the main component of the exoskeletons of arthropods, such as the shells of crustaceans and the outer coverings of insects. Chitin is also found in the cell walls of certain fungi and algae. Chemically, it is a nitrogenous polysaccharide (a carbohydrate).