Tholonium = Shell with cupolas; θολώνιον.
Cubotholus = Shell with cupolas disposed on six cube-sides; κῦβος, θόλος.
Cubotholonium = Small shell with cupolas disposed on the six sides of a cube; κῦβος, θολώνιον.
Zonarium = Small girdle; ζωνάριον.
Zoniscus = Elegant girdle; ζωνίσκος.