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.
Presence of carcass bumps: outer wall or single wall (OW/SW) | |_ Number of perforation on carcass bumps (OW/SW) | |_ Direction of carcass bumps perforation (OW/SW) {Multiperforate}