Thylacodes riisei is a species of sea snail, a marine gastropod mollusk in the family Vermetidae, the worm snails or worm shells. This species was previously known as Serpulorbis riisei.
Description The maximum recorded shell length is 37 mm.Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. .
Habitat The minimum recorded depth for this species is 0 m; maximum recorded depth is 2 m.
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