Just to add to Andrew's remarks:
        Among the namers of the Epitoniidae, even the experts make mistakes.
Roding, who coined the name "Epitoniidae" named about 40 species, none
of which stand up. Sowerby (one or another) named both E. dubia and E.
irregularis the same year (1844) and they are found to be identical.
W.H. Dall, the epitome of expertmanship, named about 100 new species of
Eps. About half have been shown to be synonyms.
        I would suggest that if you have something you HOPE is undescribed,
consider the possibility of it being just a freak, a variety, a form, a
race first. Be sure there are more of them around to compare. Then
invest in some really good photography and send the pictures to Andy
Rindsberg, et. al.---or get someone to post the photo on a web page.
That way you'll get some opinions without having to part with your "new"
specimen.
        Art