Costaclis hyalina is a species of sea snail, a marine gastropod mollusk in the family Eulimidae.Watson, 1881. Warén A. (2011). Checklist of Eulimidae. pers. com. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=532667 on 2013-01-06
Description The maximum recorded shell length is 10.7 mm.Welch J. J. (2010). "The “Island Rule” and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. doi:10.1371/journal.pone.0008776.
Habitat Minimum recorded depth is 2 m. Maximum recorded depth is 848 m.
References
Bouchet P. & Warén A. (1986). Revision of the Northeast Atlantic bathyal and abyssal Aclididae, Eulimidae, Epitonidae (Mollusca, Gastropoda). Bollettino Malacologico Suppl. 2: 297-576