avicularium

/uh-vik-yuh-lair-ee-uhm/US // əˌvɪk yəˈlɛər i əm //

牛角石,牛角菌,牛角形,牛角菌属

Definitions

n.名词 noun

1
plural a·vic·u·lar·i·a [uh-vik-yuh-lair-ee-uh]. /əˌvɪk yəˈlɛər i ə/. Zoology.
- : a protective zooid of a bryozoan colony, having movable jaws that can be snapped shut.

In this genus, in all those species in which the second avicularium occurs, each individual cell is provided with one.
Mr. Busk, however, does not know of any gradations now existing between a zooid and an avicularium.
Vittae linear, extremely narrow, entirely lateral, and extending the whole length of the cell from the base of the avicularium.
And what is worthy of remark, these terminal ovicells always have a sessile avicularium on the summit.
It also wants the raised bands which in C. amphora pass from the sides of the mouth to the apex of the avicularium in front.