Dillwynella lignicola is a species of sea snail, a marine gastropod mollusk in the family Skeneidae.

[1] The epithet "lignicola" means "living on wood".

[2] The height of the shell attains 3.5 mm, its diameter 4.05 mm.

[3] This marine species is endemic to New Zealand and is found off the Chatham Islands at depths between 1075 m and 1100 m. Dillwynellia lignicola can be also found in Exclusive Economic zone of New Zealand.

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