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Ruthvenia Biciliata
''Ruthvenia'' is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae. These snails are restricted to South India and Sri Lanka. Six species are recognized. Description Shell is trochoid to lentiform with compressed structure. Shell color varies from light-comeous to colorless. There are 1 or 2 cord-like keels on last whirl. Aperture narrow with slightly oblique shape. Umbilicus funnel-like and broad. Species * '' Ruthvenia biciliata'' (Pfeiffer 1854) * ''Ruthvenia bicincta'' (Bavay & Dautzenberg, 1912) * ''Ruthvenia caliginosa'' (Sykes 1898) * ''Ruthvenia clathratula'' (L. Pfeiffer, 1850) * ''Ruthvenia clathratuloides ''Ruthvenia'' is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae. These snails are restricted to South India and Sri Lanka. Six species are recognized. Description Shell is trochoid to ...'' (Gude, 1897) * '' Ruthvenia retifera'' (L. Pfeiffer, 184 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusk
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. The proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat. The phylum is typically divided into 7 or 8 taxonomic classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurologically advanced of all invertebrates—and either the giant squid or the colossal squid is the largest known invertebrate species. The gas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruthvenia Clathratuloides
''Ruthvenia'' is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae. These snails are restricted to South India and Sri Lanka. Six species are recognized. Description Shell is trochoid to lentiform with compressed structure. Shell color varies from light-comeous to colorless. There are 1 or 2 cord-like keels on last whirl. Aperture narrow with slightly oblique shape. Umbilicus funnel-like and broad. Species * '' Ruthvenia biciliata'' (Pfeiffer 1854) * '' Ruthvenia bicincta'' (Bavay & Dautzenberg, 1912) * '' Ruthvenia caliginosa'' (Sykes 1898) * ''Ruthvenia clathratula ''Ruthvenia'' is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae. These snails are restricted to South India and Sri Lanka Sri Lanka (, ; si, ශ්රී ලංකා, Śr ...'' (L. Pfeiffer, 1850) * '' Ruthvenia clathratuloides'' (Gude, 1897) * '' Ruthvenia retifera'' (L. Pfeiffer, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruthvenia Clathratula
''Ruthvenia'' is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae. These snails are restricted to South India and Sri Lanka Sri Lanka (, ; si, ශ්රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an .... Six species are recognized. Description Shell is trochoid to lentiform with compressed structure. Shell color varies from light-comeous to colorless. There are 1 or 2 cord-like keels on last whirl. Aperture narrow with slightly oblique shape. Umbilicus funnel-like and broad. Species * '' Ruthvenia biciliata'' (Pfeiffer 1854) * '' Ruthvenia bicincta'' (Bavay & Dautzenberg, 1912) * '' Ruthvenia caliginosa'' (Sykes 1898) * '' Ruthvenia clathratula'' (L. Pfeiffer, 1850) * '' Ruthvenia clathratuloides'' (Gude, 1897) * '' Ruthvenia retifera'' (L. Pfeiffer, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruthvenia Caliginosa
''Ruthvenia'' is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae. These snails are restricted to South India and Sri Lanka. Six species are recognized. Description Shell is trochoid to lentiform with compressed structure. Shell color varies from light-comeous to colorless. There are 1 or 2 cord-like keels on last whirl. Aperture narrow with slightly oblique shape. Umbilicus funnel-like and broad. Species * '' Ruthvenia biciliata'' (Pfeiffer 1854) * '' Ruthvenia bicincta'' (Bavay & Dautzenberg, 1912) * '' Ruthvenia caliginosa'' (Sykes 1898) * ''Ruthvenia clathratula'' (L. Pfeiffer, 1850) * ''Ruthvenia clathratuloides ''Ruthvenia'' is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae. These snails are restricted to South India and Sri Lanka. Six species are recognized. Description Shell is trochoid to ...'' (Gude, 1897) * '' Ruthvenia retifera'' (L. Pfeiffer, 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruthvenia Bicincta
''Ruthvenia'' is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae. These snails are restricted to South India and Sri Lanka. Six species are recognized. Description Shell is trochoid to lentiform with compressed structure. Shell color varies from light-comeous to colorless. There are 1 or 2 cord-like keels on last whirl. Aperture narrow with slightly oblique shape. Umbilicus funnel-like and broad. Species * '' Ruthvenia biciliata'' (Pfeiffer 1854) * '' Ruthvenia bicincta'' (Bavay & Dautzenberg, 1912) * ''Ruthvenia caliginosa'' (Sykes 1898) * ''Ruthvenia clathratula'' (L. Pfeiffer, 1850) * ''Ruthvenia clathratuloides ''Ruthvenia'' is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae. These snails are restricted to South India and Sri Lanka. Six species are recognized. Description Shell is trochoid to ...'' (Gude, 1897) * '' Ruthvenia retifera'' (L. Pfeiffer, 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruthvenia Biciliata
''Ruthvenia'' is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae. These snails are restricted to South India and Sri Lanka. Six species are recognized. Description Shell is trochoid to lentiform with compressed structure. Shell color varies from light-comeous to colorless. There are 1 or 2 cord-like keels on last whirl. Aperture narrow with slightly oblique shape. Umbilicus funnel-like and broad. Species * '' Ruthvenia biciliata'' (Pfeiffer 1854) * ''Ruthvenia bicincta'' (Bavay & Dautzenberg, 1912) * ''Ruthvenia caliginosa'' (Sykes 1898) * ''Ruthvenia clathratula'' (L. Pfeiffer, 1850) * ''Ruthvenia clathratuloides ''Ruthvenia'' is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae. These snails are restricted to South India and Sri Lanka. Six species are recognized. Description Shell is trochoid to ...'' (Gude, 1897) * '' Ruthvenia retifera'' (L. Pfeiffer, 184 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sri Lanka
Sri Lanka (, ; si, ශ්රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, and southeast of the Arabian Sea; it is separated from the Indian subcontinent by the Gulf of Mannar and the Palk Strait. Sri Lanka shares a maritime border with India and Maldives. Sri Jayawardenepura Kotte is its legislative capital, and Colombo is its largest city and financial centre. Sri Lanka has a population of around 22 million (2020) and is a multinational state, home to diverse cultures, languages, and ethnicities. The Sinhalese are the majority of the nation's population. The Tamils, who are a large minority group, have also played an influential role in the island's history. Other long established groups include the Moors, the Burghers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South India
South India, also known as Dakshina Bharata or Peninsular India, consists of the peninsular southern part of India. It encompasses the Indian states of Andhra Pradesh, Karnataka, Kerala, Tamil Nadu, and Telangana, as well as the union territories of Lakshadweep and Puducherry, comprising 19.31% of India's area () and 20% of India's population. Covering the southern part of the peninsular Deccan Plateau, South India is bounded by the Bay of Bengal in the east, the Arabian Sea in the west and the Indian Ocean in the south. The geography of the region is diverse with two mountain ranges – the Western and Eastern Ghats – bordering the plateau heartland. The Godavari, Krishna, Kaveri, Tungabhadra, Periyar, Bharathappuzha, Pamba, Thamirabarani, Palar, and Vaigai rivers are important perennial rivers. The majority of the people in South India speak at least one of the four major Dravidian languages: Tamil, Telugu, Malayalam and Kannada (all 4 of which are among the 6 Classic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. There are many thousands of species of sea snails and slugs, as well as freshwater snails, freshwater limpets, and land snails and slugs. The class Gastropoda contains a vast total of named species, second only to the insects in overall number. The fossil history of this class goes back to the Late Cambrian. , 721 families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently extant with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mollusca, and are the most highly diversified class in the phylum, with 65,000 to 80,000 living snail and slug species. The anatomy, behavior, feeding, and re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusca
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. The proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat. The phylum is typically divided into 7 or 8 taxonomic classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurologically advanced of all invertebrates—and either the giant squid or the colossal squid is the largest known invertebrate species. The gastropod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pulmonate
Pulmonata or pulmonates, is an informal group (previously an order, and before that a subclass) of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills. The group includes many land and freshwater families, and several marine families. The taxon Pulmonata as traditionally defined was found to be polyphyletic in a molecular study per Jörger ''et al.'', dating from 2010. Pulmonata are known from the Carboniferous Period to the present. Pulmonates have a single atrium and kidney, and a concentrated, symmetrical, nervous system. The mantle cavity is located on the right side of the body, and lacks gills, instead being converted into a vascularised lung. Most species have a shell, but no operculum, although the group does also include several shell-less slugs. Pulmonates are hermaphroditic, and some groups possess love darts. Linnean taxonomy The taxonomy of this group according to the taxonomy of the Ga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
