† Drillia inadrina Mansfield, 1925 Syntomodrillia inadrina is an extinct species of sea snail, a marine gastropod mollusk in the family Drilliidae.

[1] The length of the shell attains 6.6 mm, its diameter 2.2 mm.

This extinct species occurred in Miocene strata of Trinidad and Tobago; age range: 15.97 to 11.608 Ma

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