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Clionella
''Clionella'' is a genus of sea snails, marine gastropod mollusks in the family Clavatulidae. Description The shell of the species in this genus is narrowly bucciniform and turriculated. The protoconch is somewhat conical, containing 2 whorls. The whorls are somewhat flattened, longitudinally ribbed with long, flexuous ribs, and have a thick epidermis. The ribs lack subsutural or peripheral processes. The spire of the shell is elevated. The body whorl is truncated. The siphonal canal is scarcely indicated at the broad base of the aperture. The anal sinus is very shallow. The lip has a small infrasutural anal sinus with no distinct parietal tubercle. The operculum has a lateral nucleus. The foot is short, broad, and rounded behind. The eyes are located near the tip of the tentacles. Radula formula (1-1-1), Distribution This marine genus mainly occurs off South Africa. Species Species within the genus ''Clionella'' include: * ''Clionella aglaophanes'' (Watson, 1882) * ''Cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clionella Rosaria ''Clionella rosaria'' is a species of sea snail, a marine gastropod mollusk in the family Clavatulidae. The forma ''Clionella rosaria'' f. ''kowiensis'' (Turton, 1932) is accepted as ''Clionella rosaria'' (Reeve, 1846) Description The size of an adult shell varies between 15 mm and 23 mm. The shell is shortly subulate, truncated at the base. The whorls are plaited and smooth. The aperture is short. The color of the shell is bright scarlet-rose, the uppermost part of the whorls is white-zoned. The shell has an elongate-conic shape. The nuclear whorls are decollated. The post-nuclear whorls are moderately rounded, constricted at the sinus, which causes the summit of the turns to appear as a cord. The space between the sutures is variously mottled with flesh color and chestnut spots and streaks. The base, beginning at the periphery, is rose colored, a little paler on the columella than the rest. The whorls are marked with strong, protractive, axial ribs, which are about ... [...More Info...] |