Outer covering of an animal typically consisting primarily of cellulose (tunicin) in addition to varying amounts of water, protein and carbohydrates. The tunicate is a characteristic feature of Tunicata. [ https://www.worldcat.org/search?q=bn%3A0030229073 http://en.wikipedia.org/wiki/Ascidiacea#Anatomy ]
Term information
- Wikipedia:Ascidiacea#Anatomy
- BSA:0000042
In some species tunicin occurs in small amounts. Some species calcium salts are deposited as spicules. In ascidians, the tunic is supplied with blood vessels.
Term relations
- surface structure
- bounding layer of some multicellular organism
- part of some adult organism
- part of some integumental system
- in taxon some Tunicata
- composed primarily of some (1->4)-beta-D-glucan