Cerithiella seymouriana is a species of very small sea snail, a marine gastropod mollusk in the family Newtoniellidae. It was described by Strebel, in 1908.Cerithiella seymouriana at World Register of Marine Species.
Description The maximum recorded shell length is 8.2 mm.Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. .
Habitat Minimum recorded depth is 94 m. Maximum recorded depth is 213 m.
References
Engl W. (2012) Shells of Antarctica. Hackenheim: Conchbooks. 402 pp.