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Spindle :: Spindle (n.) Any marine univalve shell of the genus Rostellaria; -- called also spindle stromb.

Megastome :: Megastome (n.) One of a group of univalve shells, having a large aperture or mouth..

Univalvular :: Univalvular (a.) Same as Univalve, a..

Helicoid :: Helicoid (a.) Spiral; curved, like the spire of a univalve shell..

Ethenyl :: Ethenyl (n.) A univalent hydrocarbon radical of the ethylene series, CH2:CH; -- called also vinyl. See Vinyl..

Buccinum :: Buccinum (n.) A genus of large univalve mollusks abundant in the arctic seas. It includes the common whelk (B. undatum).

Univalent :: Univalent (a.) Having a valence of one; capable of combining with, or of being substituted for, one atom of hydrogen; monovalent; -- said of certain atoms and radicals..

Lip :: Lip (n.) One of the edges of the aperture of a univalve shell.

Formyl :: Formyl (n.) A univalent radical, H.C:O, regarded as the essential residue of formic acid and aldehyde..

Carnival :: Carnival (n.) A festival celebrated with merriment and revelry in Roman Gatholic countries during the week before Lent, esp. at Rome and Naples, during a few days (three to ten) before Lent, ending with Shrove Tuesday..

Boat Shell :: Boat shell () A marine univalve shell of the genus Cymba.

Trochus :: Trochus (n.) Any one of numerous species of marine univalve shells belonging to Trochus and many allied genera of the family Trochidae. Some of the species are called also topshells.

Mollusca :: Mollusca (n. pl.) One of the grand divisions of the animal kingdom, including the classes Cephalopoda, Gastropoda, PteropodaScaphopoda, and Lamellibranchiata, or Conchifera. These animals have an unsegmented bilateral body, with most of the organs and parts paired, but not repeated longitudinally. Most of them develop a mantle, which incloses either a branchial or a pulmonary cavity. They are generally more or less covered and protected by a calcareous shell, which may be univalve, bivalve, or m

Goroon Shell :: Goroon shell () A large, handsome, marine, univalve shell (Triton femorale)..

Abalone :: Abalone (n.) A univalve mollusk of the genus Haliotis. The shell is lined with mother-of-pearl, and used for ornamental purposes; the sea-ear. Several large species are found on the coast of California, clinging closely to the rocks..

Strombite :: Stromb (n.) Any marine univalve mollusk of the genus Strombus and allied genera. See Conch, and Strombus..

Varix :: Varix (n.) One of the prominent ridges or ribs extending across each of the whorls of certain univalve shells.

Nival :: Nival (a.) Abounding with snow; snowy.

Bubble Shell :: Bubble shell () A marine univalve shell of the genus Bulla and allied genera, belonging to the Tectibranchiata..

Conch :: Conch (n.) A name applied to various marine univalve shells; esp. to those of the genus Strombus, which are of large size. S. gigas is the large pink West Indian conch. The large king, queen, and cameo conchs are of the genus Cassis. See Cameo..

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