Descriptor : Perforation of carcass bumps (OW/SW)

Descriptor type : categorical

Bumps: Outer wall structure in shape of a subspherical/hemispherical dome.
Similar: Tumuli, pustule.

Carcass: Part of wall on intervallum side.

OW: Outer wall.

SW: Single wall.

Simple

Simple: With a single opening.

Multiperforate

Multiperforate: With several openings.

isn't included in the term

Hierarchy

Carcass bumps: outer wall or single wall (OW/SW)
 |
 |_ Perforation of carcass bumps (OW/SW)
    |
    |_ Direction of carcass bumps perforation (OW/SW) {Multiperforate}