Sentence Examples

  • Shell thick, with short spire, last whorl large and canal short; aperture wide; operculum horny.
  • At the front is a large slab, sometimes carved, with a small aperture in it, through which offerings might be inserted.
  • In this category are included (by Goodrich and Lankester) the gonad ducts of the Oligochaeta, certain funnels without any aperture to the exterior that have been detected in Nereis, &c., funnels with wide and short ducts attached to nephridia in other Polychaeta, gonad ducts in the Capitellidae, the gonad ducts of the leeches.
  • Terrestrial and usually littoral; genital duct monaulic, the penis being connected with the aperture by an open or closed groove; shell with a prominent spire, the internal partitions often absorbed and the aperture denticulated.
  • From the open condition arises the closed condition very simply by closing up of the aperture of the pit.

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