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Leptinaria Lamellata
''Leptinaria unilamellata'' is a species of tropical, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Achatinidae. Distribution ''Leptinaria unilamellata'' is a widespread species throughout the Caribbean Basin. The distribution of ''Leptinaria unilamellata'' includes: * West Indies * Dominica - introduced * Guadeloupe - introduced * Martinique - introduced * other in the Lesser Antilles - introduced * Central America * Venezuela * Peru Ecology It is generally found in damp leaf litter and under rotten logs in Dominica. It is ovoviviparous species.Carvalho C. De M., Da Silva J. P., Mendonça C. L. F.; Bessa E. C. De A. & D'ávila S. (2009). "Life history strategy of ''Leptinaria unilamellata'' (d'Orbigny, 1835) (Mollusca, Pulmonata, Subulinidae)". ''Invertebrate Reproduction & Development'' 53(4): 211-222. . References This article incorporates CC-BY-3.0 text from the reference.Robinson D. G., Hovestadt A., Fields A. & Breure A. S. H. (Ju ... [...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] |
Land Snail
A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails. ''Land snail'' is the common name for terrestrial gastropod mollusks that have shells (those without shells are known as slugs). However, it is not always easy to say which species are terrestrial, because some are more or less amphibious between land and fresh water, and others are relatively amphibious between land and salt water. Land snails are a polyphyletic group comprising at least ten independent evolutionary transitions to terrestrial life (the last common ancestor of all gastropods was marine). The majority of land snails are pulmonates that have a lung and breathe air. Most of the non-pulmonate land snails belong to lineages in the Caenogastropoda, and tend to have a gill and an operculum. The largest clade of land snails is the Cyclophoroidea, with more than 7,000 species. Many of these operculate land snails live in habitats or microhabitats ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invertebrate Reproduction & Development
Invertebrates are a paraphyletic group of animals that neither possess nor develop a vertebral column (commonly known as a ''backbone'' or ''spine''), derived from the notochord. This is a grouping including all animals apart from the chordate subphylum Vertebrata. Familiar examples of invertebrates include arthropods, mollusks, annelids, echinoderms and cnidarians. The majority of animal species are invertebrates; one estimate puts the figure at 97%. Many invertebrate taxa have a greater number and variety of species than the entire subphylum of Vertebrata. Invertebrates vary widely in size, from 50 μm (0.002 in) rotifers to the 9–10 m (30–33 ft) colossal squid. Some so-called invertebrates, such as the Tunicata and Cephalochordata, are more closely related to vertebrates than to other invertebrates. This makes the invertebrates paraphyletic, so the term has little meaning in taxonomy. Etymology The word "invertebrate" comes from the Latin word ''vertebra'', which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ovoviviparous
Ovoviviparity, ovovivipary, ovivipary, or aplacental viviparity is a term used as a "bridging" form of reproduction between egg-laying oviparous and live-bearing viviparous reproduction. Ovoviviparous animals possess embryos that develop inside eggs that remain in the mother's body until they are ready to hatch. The young of some ovoviviparous amphibians, such as ''Limnonectes larvaepartus'', are born as larvae, and undergo further metamorphosis outside the body of the mother. Members of genera ''Nectophrynoides'' and ''Eleutherodactylus'' bear froglets, not only the hatching, but all the most conspicuous metamorphosis, being completed inside the body of the mother before birth. Among insects that depend on opportunistic exploitation of transient food sources, such as many Sarcophagidae and other carrion flies, and species such as many Calliphoridae, that rely on fresh dung, and parasitoids such as tachinid flies that depend on entering the host as soon as possible, the emb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf Litter
Plant litter (also leaf litter, tree litter, soil litter, litterfall or duff) is dead plant material (such as leaves, bark, needles, twigs, and cladodes) that have fallen to the ground. This detritus or dead organic material and its constituent nutrients are added to the top layer of soil, commonly known as the litter layer or O horizon ("O" for "organic"). Litter is an important factor in ecosystem dynamics, as it is indicative of ecological productivity and may be useful in predicting regional nutrient cycling and soil fertility. Characteristics and variability Litterfall is characterized as fresh, undecomposed, and easily recognizable (by species and type) plant debris. This can be anything from leaves, cones, needles, twigs, bark, seeds/nuts, logs, or reproductive organs (e.g. the stamen of flowering plants). Items larger than 2 cm diameter are referred to as coarse litter, while anything smaller is referred to as fine litter or litter. The type of litterfall is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Non-marine Molluscs Of Peru
The non-marine molluscs of Peru are a part of the molluscan fauna of Peru ( wildlife of Peru). A number of species of non-marine molluscs are found in the wild in Peru. There are 852 species of gastropods (89 species of freshwater gastropods, 763 species of land gastropods) and 40 species of freshwater bivalves living in the wild. There is altogether 129 species of freshwater molluscs in Peru. Ramírez R., Paredes C. & Arenas J. (2003). "Moluscos del Perú". '' Revista de Biología Tropical'' 51(3): 225-284PDF Freshwater gastropods Freshwater gastropods include: Ampullariidae * ''Pomacea haustrum'' (Reeve, 1856)Rawlings T. A., Hayes K. A., Cowie R. H. & Collins T. M. (2007). "The identity, distribution, and impacts on non-native apple snails in the continental United States". ''BMC Evolutionary Biology'' 7: 97 . Planorbidae * '' Biomphalaria andecola'' (Orbigny, 1835)Paraense W. L. (September 2003) "Planorbidae, Lymnaeidae and Physidae of Peru (Mollusca: Basommatophora ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Non-marine Molluscs Of Venezuela
The non-marine molluscs of Venezuela are a part of the molluscan fauna of Venezuela (which is part of the wildlife of Venezuela). Non-marine molluscs are the snails, clams and mussels that live in freshwater habitats, and the snails and slugs that live on land. Sea-dwelling molluscs are not included in this list. A number of species of non-marine molluscs are found in the wild in Venezuela. Historical background Studies on the knowledge of the Venezuelan malacofauna begin in the nineteenth century with the work of German malacologist Eduard von Martens around 1873 who published the first list of the mollusks Venezuela. Three years later the German-Venezuelan Adolfo Ernst, taking as its starting point and extending Martens list, published a second list in 1876. Subsequent to these two pioneering nineteenth century works, only sporadic descriptions were published in foreign publications. It took about half a century for new listings of malacofauna of Venezuela to be published, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Non-marine Molluscs Of Martinique
The non-marine molluscs of Martinique are a part of the molluscan fauna of Martinique ( wildlife of Martinique). Martinique is a Caribbean island in the Lesser Antilles. A number of species of non-marine molluscs are found in the wild in Martinique. There are at least 88 species of gastropods (10 native freshwater gastropods and 7 species of introduced freshwater gastropods, 60 species of land gastropods) and 3 species of freshwater bivalve living in the wild. Freshwater gastropods Neritinidae * '' Neritilia succinea'' (Récluz, 1841) * ''Neritina punctulata'' Lamarck, 1816 * ''Neritina virginea'' (Linnaeus 1758) Ampullariidae * ''Marisa cornuarietis'' (Linnaeus, 1758) - introducedPointier J.-P. (2001). "Invading freshwater snails and biological control in Martinique Island, French West Indies". ''Memórias do Instituto Oswaldo Cruz'' 96(1): 67–74HTM * ''Pomacea glauca'' (Linnaeus, 1758) Thiaridae * ''Melanoides tuberculata'' (O. F. Müller, 1774) - introduced since 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Non-marine Molluscs Of Guadeloupe
The non-marine molluscs of Guadeloupe are a part of the molluscan fauna of Guadeloupe ( wildlife of Guadeloupe). Guadeloupe is a Caribbean island in the Lesser Antilles. A number of species of non-marine molluscs are found in the wild in Guadeloupe. Freshwater gastropods Ampullariidae * ''Marisa cornuarietis'' (Linnaeus, 1758) * ''Pomacea glauca'' (Linnaeus, 1758)Pointier, Jean-Pierre. 1974: faune malacologique dulçaquicole de l’ile de la Guadaloupe (Antilles françaises). 'Bulletin du Muséum National D´Historie Naturalle', 3ser.(235):905-933 Ancylidae * '' Gundlachia radiata'' (Guilding, 1828) Bulinidae * ''Plesiophysa granulata'' (Shuttleworth in Sowerby, 1873) * '' Plesiophysa guadeloupensis'' ("Fischer" Mazé, 1883)Lobato Paraense, W. 2003: Plesiophysa guadeloupensis ("Fischer" Mazé, 1883). 'Mem Inst Oswaldo Cruz, Rio de Janeiro', 98(4):519-52Bioline International/ref> Hydrobiidae * ''Potamopyrgus coronatus'' (Pfeiffer, 1840) * '' Pygophorus parvulus'' (Guildi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Non-marine Molluscs Of Dominica
The non-marine molluscs of Dominica are species of land and freshwater molluscs, i.e. land snails, land slugs and one small freshwater clam that are part of the wildlife of Dominica, an island in the Lesser Antilles. In malacology, the non-marine molluscs of an area are traditionally listed separately from the marine molluscs (those molluscs that live in full-salinity saltwater). Dominica is a Caribbean island, part of the Windward Island chain of the Lesser Antilles. Fifty-five species of non-marine molluscs have been found in the wild in Dominica, including sixteen endemic species of land snails, species which occur nowhere else on Earth. Dominica is a mountainous, , volcanic, tropical island. It is undeveloped compared with most other Caribbean islands, and it is known for its wildlife and unspoiled natural landscapes. The rugged terrain includes a great deal of tropical rainforest, numerous rivers, and several officially protected areas, including Morne Trois Pitons National ... [...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] |
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] |
