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Lotoria Grandimaculata 01
''Lotoria'' is a genus of predatory sea snails, marine gastropod mollusks in the family Cymatiidae. Description The triangular whorls are coronated. The aperture In optics, the aperture of an optical system (including a system consisting of a single lens) is the hole or opening that primarily limits light propagated through the system. More specifically, the entrance pupil as the front side image o ... is longer than the Spire (mollusc), spire. The outer Lip (gastropod), lip is dentated internally. Distribution This genus occurs in the Indo-West Pacific and off the Philippines, Papua New Guinea, the Marquesas Islands and Australia (Queensland) Species Species within the genus ''Lotoria'' include: * ''Lotoria armata'' (G.B. Sowerby III, 1897) * ''Lotoria grandimaculata'' (Reeve, 1844) * ''Lotoria lotoria'' (Linnaeus, 1758) * ''Lotoria triangularis'' (Perry, 1811) ;Synonyms: * ''Lotoria perryi'' (Emerson & Old, 1963): synonym of ''Lotoria triangularis'' (Perry, 1811) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lotoria Grandimaculata
''Lotoria grandimaculata'', common name : the large spotted triton, is a species of predatory sea snail, a marine (ocean), marine gastropod mollusk in the family (biology), family Cymatiidae. Description The shell size varies between 50 mm and 132 mm The shell is ovately turreted, thick, contracted at the lower part, with three varices. The Spire (mollusc), spire is rather obtuse. The Whorl (mollusc), whorls are angulated at the upper part, transversely faintly striated and ridged. The upper ridges are tubercularly knobbed. The shell is light brownish yellow. The varices and the upper part of the Columella (gastropod), columella are ornamented with large spots of very dark brown. The columella is smooth or obsoletely plaited. The outer Lip (gastropod), lip is dentated within, teeth very dark brown. The interior of the Aperture (gastropod), aperture is white. The siphonal canal is rather short, a little turned upwards. Distribution This species occurs in the Red Sea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spire (mollusc)
A spire is a part of the coiled shell of molluscs. The spire consists of all of the whorls except for the body whorl. Each spire whorl represents a rotation of 360°. A spire is part of the shell of a snail, a gastropod mollusc, a gastropod shell, and also the whorls of the shell in ammonites, which are fossil shelled cephalopods. In textbook illustrations of gastropod shells, the tradition (with a few exceptions) is to show most shells with the spire uppermost on the page. The spire, when it is not damaged or eroded, includes the protoconch (also called the nuclear whorls or the larval shell), and most of the subsequent teleoconch whorls (also called the postnuclear whorls), which gradually increase in area as they are formed. Thus the spire in most gastropods is pointed, the tip being known as the " apex". The word "spire" is used, in an analogy to a church spire or rock spire, a high, thin, pinnacle. The "spire angle" is the angle, as seen from the apex, at which a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lotoria Lotoria
''Lotoria lotoria'', common name the black-spotted snail or washing bath triton, is a species of predatory sea snail, a tropical marine gastropod mollusc in the family Cymatiidae. This species was previously known as ''Cymatium lotorium''. Fossil records Fossils from this family date back to the Eocene (age range: from 55.8 to 0.012 million years ago). Description Shells of ''Lotoria lotoria'' can reach a size of . The shell is somewhat fusiformly turreted, thick, solid, distorted at the lower part, with four or five varices. The spire is rude and rather obtuse. The whorls are angulated at the upper part, obsoletely depressly ribbed with the ribs crenulated. The shell is reddish yellow, ornamented above the aperture and upon the varices between the ribs with blackish brown. The columella is more or less obsoletely plaited. The outer lip is denticulated. The siphonal canal is short and broad. Distribution This species of marine snail lives in the tropical Indo-Pacific oceans, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lotoria Armata
''Lotoria armata'' is a species of predatory sea snail, a marine gastropod mollusk in the family Cymatiidae. Description The shell has short spines surrounding it. The length of the shell attains 72 mm, its maximum diameter 42 mm. Distribution This marine species occurs off New Caledonia, Vanuatu, Fiji and Australia (Queensland Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Austr ...). In shallow water up to 20m deep. References * * Cernohorsky, W.O. 1978. Tropical Pacific marine shells. Sydney : Pacific Publications 352 pp., 68 pls. * Arthur, A.R. 1983. Notes on Cymatium armatum (Sowerby III). La Conchiglia 1983(Sep-Oct): 5 * Henning, T. & Hemmen, J. 1993. Ranellidae and Personidae of the World. Wiesbaden, Germany : V.C. Hemmen 263 pp. * Beu A.G. 1998. ''Indo-West Pacific Ranelli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queensland
Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west and south, respectively. To the east, Queensland is bordered by the Coral Sea and the Pacific Ocean; to the state's north is the Torres Strait, separating the Australian mainland from Papua New Guinea, and the Gulf of Carpentaria to the north-west. With an area of , Queensland is the world's List of country subdivisions by area, sixth-largest subnational entity; it List of countries and dependencies by area, is larger than all but 16 countries. Due to its size, Queensland's geographical features and climates are diverse, and include tropical rainforests, rivers, coral reefs, mountain ranges and white sandy beaches in its Tropical climate, tropical and Humid subtropical climate, sub-tropical c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marquesas Islands
The Marquesas Islands ( ; or ' or ' ; Marquesan language, Marquesan: ' (North Marquesan language, North Marquesan) and ' (South Marquesan language, South Marquesan), both meaning "the land of men") are a group of volcano, volcanic islands in French Polynesia, an overseas collectivity of France in the southern Pacific Ocean. Their highest point is the peak of Mont Oave, Mount Oave () on Ua Pou island, at 1,230 m (4,035 ft) above sea level. Archaeological research suggests the islands were colonized in the 10th century AD by voyagers from West Polynesia. Over the centuries that followed, the islands have maintained a "remarkably uniform culture, biology and language". The Marquesas were named after the 16th-century Spanish Viceroy of Peru, the García Hurtado de Mendoza, 5th Marquis of Cañete, Marquis of Cañete (), by navigator , who visited them in 1595. The Marquesas Islands constitute one of the administrative divisions of French Polynesia, five administrative di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Papua New Guinea
Papua New Guinea, officially the Independent State of Papua New Guinea, is an island country in Oceania that comprises the eastern half of the island of New Guinea and offshore islands in Melanesia, a region of the southwestern Pacific Ocean north of Australia. It has Indonesia–Papua New Guinea border, a land border with Indonesia to the west and neighbours Australia to the south and the Solomon Islands to the east. Its capital, on its southern coast, is Port Moresby. The country is the world's third largest list of island countries, island country, with an area of . The nation was split in the 1880s between German New Guinea in the North and the Territory of Papua, British Territory of Papua in the South, the latter of which was ceded to Australia in 1902. All of present-day Papua New Guinea came under Australian control following World War I, with the legally distinct Territory of New Guinea being established out of the former German colony as a League of Nations mandate. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philippines
The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a total area of roughly 300,000 square kilometers, which are broadly categorized in Island groups of the Philippines, three main geographical divisions from north to south: Luzon, Visayas, and Mindanao. With a population of over 110 million, it is the world's List of countries and dependencies by population, twelfth-most-populous country. The Philippines is bounded by the South China Sea to the west, the Philippine Sea to the east, and the Celebes Sea to the south. It shares maritime borders with Taiwan to the north, Japan to the northeast, Palau to the east and southeast, Indonesia to the south, Malaysia to the southwest, Vietnam to the west, and China to the northwest. It has Ethnic groups in the Philippines, diverse ethnicities and Culture o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lip (gastropod)
In the shell of gastropod mollusks (a snail shell), the lip is the free margin of the peristome (synonym: peritreme) or aperture (mollusc), aperture (the opening) of the gastropod shell. In dextral (right-handed) shells (most snail shells are right-handed), the right side or outer side of the aperture is known as the outer lip (''labrum''). The left side of the aperture is known as the inner lip or columellar lip (''labium'') if there is a pronounced lip there. In those species where there is no pronounced lip, the part of the body whorl that adjoins the aperture is known as the parietal wall. The outer lip is usually thin and sharp in immature shells, and in some adults (e.g. the land snails ''Helicella'' and ''Bulimulus''). However, in some other land snails and in many marine species the outer lip is ''thickened'' (also called ''callused''), or ''reflected'' (turned outwards). In some other marine species it is curled inwards (''inflected''), as in the cowries such as ''Cypraea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aperture (gastropod)
The aperture is an opening in certain kinds of mollusc shells: it is the main opening of the shell, where the head-foot part of the body of the animal emerges for locomotion, feeding, etc. The term ''aperture'' is used for the main opening in gastropod shells, scaphopod shells, and also for ''Nautilus'' and ammonite shells. The word is not used to describe bivalve shells, where a natural opening between the two shell valves in the closed position is usually called a ''gape''. Scaphopod shells are tubular, and thus they have two openings: a main anterior aperture and a smaller posterior aperture. As well as the aperture, some gastropod shells have additional openings in their shells for respiration; this is the case in some Fissurellidae (keyhole limpets) where the central smaller opening at the apex of the shell is called an orifice, and in the Haliotidae (abalone) where the row of respiratory openings in the shell are also called orifices. In gastropods In some prosobranch g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whorl (mollusc)
A whorl is a single, complete 360° revolution or turn in the spiral or whorled growth of a mollusc shell. A spiral configuration of the shell is found in numerous gastropods, but it is also found in shelled cephalopods including ''Nautilus'', ''Spirula'' and the large extinct subclass of cephalopods known as the ammonites. A spiral shell can be visualized as consisting of a long Cone (geometry), conical tube, the growth of which is coiled into an overall Helix, helical or planispiral shape, for reasons of both strength and compactness. The number of whorls which exist in an adult shell of a particular species depends on mathematical factors in the geometric growth, as described in D'Arcy Wentworth Thompson's classic 1917 book ''On Growth and Form'', and by David Raup. The main factor is how rapidly the conical tube expands (or flares-out) over time. When the rate of expansion is low, such that each subsequent whorl is not that much wider than the previous one, then the adult s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
