Pleurotoma (other)

	Pleurotoma (other) Pleurotoma may refer to: * ''Pleurotoma'' Lamarck, 1799 , a genus of gastropods in the family Turridae, synonym of ''Turris'' * ''Pleurotoma'' Mörch, 1869, a genus of gastropods in the family Mangeliidae, synonym of ''Oenopota * ''Pleurotoma'', a fossil genus of sponges in the order Lychniscosida Lychniscosida is an order of sponges belonging to the class Hexactinellida. Families: * Aulocystidae * Becksiidae * Callodictyidae * Callodictyonidae * Calypterellidae * Calyptrellidae * Camerospongiidae * Coeloptychidae * Coeloscysphiida ..., family unknown, synonym of '' Jima'' {{Genus disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Turris ''Turris'' is a genus of sea snails, marine gastropod mollusks in the family Turridae, the turrids. Description The generally large shells are variegated with spots. The fusiform shell is turriculated with a long, sharp spire. The aperture is ovate. The columellar lip is smooth. The outer lip is separated with a narrow profound sinus from the suture rather than distantly. The siphonal canal is long and narrow, straight and open.George Washington Tryon, Manual of Conchology VI, p. 160; 1884 (Description by Charles Hedley) The shell is large, with a tall slender spire. The outer lip is sharp, without fold or thickening. The siphonal notch is a deep slit with parallel sides following a walled-in fasciole. Within the body whorl are sharp raised revolving threads, a feature shared by related genera. The protoconch consists of two smooth rounded whorls. The operculum is unguiculate, with an apical nucleus. The foot of the animal is anteriorly truncated but obtuse posteriorly. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Oenopota ''Oenopota'' is a genus of sea snails, marine gastropod mollusks in the family Mangeliidae. This genus doesn't form a monophyletic group. Therefore many species are only tentatively placed within this genus. Description In 1941 Paul Bartsch described species in this genus as having large, heavy and elongate -ovate to elongate- turreted shells. The protoconch is smooth at the apex, succeeded by a whorl with three spiral cords and rather distantly spaced axial ribs. The longitudinal ribs become stronger on succeeding whorls but evanesce at the base of the shell. The spiral sculpture weakens on succeeding whorls and finally becomes mere threads. The pear-shaped aperture is deeply channeled anteriorly. It shows in the outer lip near the summit a feeble posterior sinus. Later, in 1980, it has been stated by Bouchet & Warèn that there is a high variation within the arctic forms of this genus, such as the outer lip showing all transitions from sinuated to nonsinuated Distribu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Lychniscosida Lychniscosida is an order of sponges belonging to the class Hexactinellida. Families: * Aulocystidae * Becksiidae * Callodictyidae * Callodictyonidae * Calypterellidae * Calyptrellidae * Camerospongiidae * Coeloptychidae * Coeloscysphiidae * Coscinoporidae * Cypellidae * Cypelliidae * Dactylocalycidae * Diapleuridae ''Diapleuridae'' is a family of five extinct species of marine glass sponges found in the Caribbean Sea, Florida Straits, Banda Sea, and US Virgin Islands. A sixth species–''Diapleura hatoni''–is postulated to have existed around the same time ... * Oncotoechidae * Polyblastidiidae * Sporadopylidae * Ventriculitidae References {{Taxonbar, from=Q4143365 Hexactinellida Sponge orders ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]