Sentence Examples


  • He referred also to the nautiloid shell of the larva falling to one side.
  • In the larva a nautiloid shell is developed which is coiled exogastrically, that is, dorsally, and the pallial cavity is posterior or ventral (fig.
  • A shell is possessed in the adult state by but few Opisthobranchia, but all pass through a veliger larval stage with a nautiloid shell (fig.
  • From the fact that Aplysia commences its life as a free-swimming veliger with a nautiloid shell not enclosed in any way by the border of the mantle, it is clear that the enclosure of the shell in the adult is a secondary process.
  • Aplysia, like other Mollusca, develops a primitive shellsac in its trochosphere stage of development, which disappears and is succeeded by a nautiloid shell (fig.

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