Persicula Vanpeli (Paperback)

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Persicula vanpeli is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae. Cystiscidae is a taxonomic family of minute sea snails, marine gastropod mollusks or micromollusks.The shell is minute to large, either white, uniformly colored, or patterned; the surface is smooth, sculptured, or axially costate; the spire is flat to immersed, or low to tall; the protoconch is paucispiral; the lip is thickened, smooth or denticulate; an external varix is present or absent; a siphonal notch is present or absent; a posterior notch is present or absent; the columella is multiplicate, internal whorls cystiscid or modified cystiscid type. Mantle cavity with monopectinate ctenidium and bipectinate osphradium. Proboscis pleurembolic; jaws absent; typical radular sac present.