Usage examples (9)

• To these staves, strings, known as "umbilici," were attached, to the ends of which bullæ or weights were fixed.
• The distribution of the land snail genus Discus, whose shells have wide umbilici, ranges across Asia, Europe and North America.
• The juvenile shells of both species have open umbilici, but they can be distinguished, with some difficulty, from their microsculpture.
• In this paper, Kuźnik-Kowalska and Pokryszko are presenting evidence that 3 European Discus species may also use the umbilici of their shells to transport and brood...