A spire is a descriptive term for part of the shell of a
ome different types of spire
Turbinoform or Turbinate: having a broadly conical spire and a convex base, as in "Turbo", turban-shaped.
Turriform: with a many-whorled, slender spire, as in "
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Spire (disambiguation) — Spire may refer to: * A Spire, tapering conical or pyramidal structure on the top of a building. * The Spire of Dublin * Spire, a character from Metroid Prime Hunters . * Blackrock Spire, an instance dungeon in World of Warcraft . * Endar Spire * … Wikipedia
Mollusc shell — Closed and open shells of a marine bivalve, Petricola pholadiformis. A bivalve shell is composed of two hinged valves which are joined by a ligament … Wikipedia
spire — spire1 noun 1》 a tapering conical or pyramidal structure on the top of a building, typically a church tower. 2》 the continuation of a tree trunk above the point where branching begins. Derivatives spired adjective spiry adjective Origin OE spīr… … English new terms dictionary
Apex (mollusc) — The apex is a word most often used to mean the tip of the spire of the shell of a gastropod. It is the first formed, and therefore the oldest, part of the shell. To be more precise, the apex would usually be where the tip of the embryonic shell… … Wikipedia
Body whorl — The body whorl in a mollusc shell is the most recently formed whorl of a spiral shell, terminating in the aperture. The size of the body whorl differs greatly according to shell morphology. In shells in which the rate of whorl expansion after… … Wikipedia
Alcithoe smithi — Taxobox name = Alcithoe smithi image caption = Mollusc regnum = Animalia phylum = Mollusca classis = Gastropoda ordo = Sorbeoconcha familia = Volutidae genus = Alcithoe species = A. smithi binomial = Alcithoe smithi binomial authority = Powell,… … Wikipedia
Fautor onustus — Taxobox name = Fautor onustus image caption = regnum = Animalia phylum = Mollusca classis = Gastropoda ordo = Archaeogastropoda familia = Trochidae genus = Fautor species = F. onustus binomial = Fautor onustus binomial authority = (Onhner, 1924)… … Wikipedia
Spectamen tryphenense — Taxobox name = Spectamen tryphenense image caption = regnum = Animalia phylum = Mollusca classis = Gastropoda ordo = Archaeogastropoda familia = Trochidae genus = Spectamen species = S. tryphenense binomial = Spectamen tryphenense binomial… … Wikipedia
Liarea egea egea — Taxobox name = Liarea egea egea image caption = regnum = Animalia phylum = Mollusca classis = Gastropoda ordo = Mesogastropoda familia = Liareidae genus = Liarea species = L. aupouria subspecies = L. egea egea trinomial = Liarea egea egea… … Wikipedia
Xymene plebius — Taxobox name = Xymene plebius image caption = status = regnum = Animalia phylum = Mollusca classis = Gastropoda ordo = Sorbeoconcha familia = Muricidae genus = Xymene species = X. plebius binomial = Xymene plebius binomial authority = (Hutton,… … Wikipedia
