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Discus Rotundatus
''Discus rotundatus'', common name rotund disc, is a species of small, air-breathing, land snail, a terrestrial pulmonate gastropod mollusk in the family Discidae, the disk snails. Description The shells of ''Discus rotundatus'' in the adult stage measure in diameter and in height. Shells are reddish brown with darker cross bands, flat and densely ribbed. The umbilicus is quite wide, reaching about 1/3 of the shell diameter. Among the species of ''Discus'' in Europe and North America, ''Discus rotundatus'' is recognized by the alternating pattern of reddish brown spots, tight coiling of the whorls and broad and shallow umbilicus. The body of this gastropod is bluish black on the upperside, while the lower side is greyish white. They mainly feed on plant debris, humus, algae and fungi. Cycle of life These snails, like most terrestrial gastropods, are hermaphrodite. The reproductive season last from May to October. Usually they lay 20-50 eggs in rotting wood or below decaying ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discidae
Discidae is a taxonomic family of small air-breathing land snails, terrestrial gastropod mollusks in the superfamily Punctoidea. Genera The family Discidae has no subfamilies. Genera within the family Discidae include: * ''Anguispira'' Morse, 1864 * † ''Calogoniodiscus'' Pfeffer, 1930 * '' Canaridiscus'' Alonso & Ibáñez, 2011Yanes Y., Holyoak G. A., Holyoak D. T., Alonso M. R. & Ibáñez M. (2011). "A new Discidae subgenus and two new species (Gastropoda: Pulmonata) from the Canary Islands". ''Zootaxa'' 2911: 43-49PDF * † '' Coxiola'' Pfeffer, 1930 * '' Discus'' Fitzinger, 1833 * † '' Manganellia'' Harzhauser, Neubauer & Georgopoulou in Harzhauser et al., 2014 * † '' Protodiscus'' Solem & Yochelson, 1979 ;Synonyms: * ''Zonodiscus'' Pilsbry, 1948 Pilsbry, H.A. 1948. Land Mollusca of North America (North of Mexico). Volume 2, Part 2. Academy of Natural Sciences of Philadelphia Monograph No. 3. - or as a subgenus of ''Anguispira'': synonym of ''Anguispira (Zonodisc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discus (genus)
''Discus'' is a genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Discidae, the disk snails. Distribution Distribution of the genus ''Discus'' include Europe, northern Asia and North America."Genus summary for ''Discus''" , last modified 15 january 2009, accessed 13 January 2011. Description Discus species have small or medium shells with ribs. The umbilicus is wide.[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discidae - Discus Rotundatus
Discidae is a taxonomic family of small air-breathing land snails, terrestrial gastropod mollusks in the superfamily Punctoidea. Genera The family Discidae has no subfamilies. Genera within the family Discidae include: * '' Anguispira'' Morse, 1864 * † '' Calogoniodiscus'' Pfeffer, 1930 * '' Canaridiscus'' Alonso & Ibáñez, 2011Yanes Y., Holyoak G. A., Holyoak D. T., Alonso M. R. & Ibáñez M. (2011). "A new Discidae subgenus and two new species (Gastropoda: Pulmonata) from the Canary Islands". ''Zootaxa ''Zootaxa'' is a peer-reviewed scientific mega journal for animal taxonomists. It is published by Magnolia Press (Auckland, New Zealand). The journal was established by Zhi-Qiang Zhang in 2001 and new issues are published multiple times a week ...'' 2911: 43-49PDF * † '' Coxiola'' Pfeffer, 1930 * '' Discus'' Fitzinger, 1833 * † '' Manganellia'' Harzhauser, Neubauer & Georgopoulou in Harzhauser et al., 2014 * † '' Protodiscus'' Solem & Yochelson, 1979 ;Synonym ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animalia
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have 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 bilaterally symmetric body plan. The Bilateria include the protostomes, containing animals such as nematodes, arthropods, flatworms, annelids and molluscs, and the deuterostomes, containing the echinode ... [...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] |
Calcareous
Calcareous () is an adjective meaning "mostly or partly composed of calcium carbonate", in other words, containing lime or being chalky. The term is used in a wide variety of scientific disciplines. In zoology ''Calcareous'' is used as an adjectival term applied to anatomical structures which are made primarily of calcium carbonate, in animals such as gastropods, i.e., snails, specifically about such structures as the operculum, the clausilium, and the love dart. The term also applies to the calcium carbonate tests of often more or less microscopic Foraminifera. Not all tests are calcareous; diatoms and radiolaria have siliceous tests. The molluscs are calcareous, as are calcareous sponges ( Porifera), that have spicules which are made of calcium carbonate. In botany ''Calcareous grassland'' is a form of grassland characteristic of soils containing much calcium carbonate from underlying chalk or limestone rock. In medicine The term is used in pathology, for example i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scandinavia
Scandinavia; Sámi languages: /. ( ) is a subregion#Europe, subregion in Northern Europe, with strong historical, cultural, and linguistic ties between its constituent peoples. In English usage, ''Scandinavia'' most commonly refers to Denmark, Norway, and Sweden. It can sometimes also refer more narrowly to the Scandinavian Peninsula (which excludes Denmark but includes part of Finland), or more broadly to include all of Finland, Iceland, and the Faroe Islands. The geography of the region is varied, from the Norwegian fjords in the west and Scandinavian mountains covering parts of Norway and Sweden, to the low and flat areas of Denmark in the south, as well as archipelagos and lakes in the east. Most of the population in the region live in the more temperate southern regions, with the northern parts having long, cold, winters. The region became notable during the Viking Age, when Scandinavian peoples participated in large scale raiding, conquest, colonization and trading mostl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Non-marine Molluscs Of Ireland
This list of the non-marine molluscs of Ireland comprises 165 species of non-marine molluscs which have been recorded as part of the fauna of Ireland. These are terrestrial and aquatic gastropods, and bivalves; the list does not include species of molluscs which are considered to be fully marine. In other words: this list includes land snails and slugs, and freshwater and brackish water snails. It also includes freshwater mussels and freshwater clams, including some that can tolerate brackish water. Molluscs that are fully adapted to live in the sea are not included here. Ireland is an island in the northeastern Atlantic. It consists of the Republic of Ireland, also known simply as Ireland (or in the Irish language ''Éire''), and Northern Ireland, which is part of the United Kingdom. The mollusc fauna of the island of Ireland has not been as thoroughly researched as that of the island of Great Britain, and therefore it is possible that some uncommon and local species (whether ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Non-marine Molluscs Of Great Britain
This list comprises 231 species of non-marine molluscs that have been recorded in the scientific literature as part of the fauna of the island of Great Britain; this total excludes species found only in hothouses and aquaria. The list includes terrestrial and aquatic gastropods, and aquatic bivalves. Molluscs that are fully marine (adapted to live in the sea) are not included here, except for two marine pulmonate snails. In other words, this list includes land snails and slugs, and freshwater and brackish water snails. It also includes freshwater mussels and clams, including some that can tolerate brackish water. Great Britain is a European island in the northeastern Atlantic, comprising the contiguous countries of England, Scotland and Wales. (Great Britain is not the same entity as the United Kingdom of Great Britain and Northern Ireland; for more information on the complex nomenclature of this area, please see terminology of the British Isles.) The mollusc fauna of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Molluscs Recorded In Slovakia
Slovakia is a land-locked country, and therefore the molluscs of Slovakia are all land and freshwater species. There are 247 Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. nnotated list of mollusc species recorded outdoors in the Czech and Slovak Republics. ''Malacologica Bohemoslovaca'', Suppl. 1: 1-37PDF species of molluscs living in the wild in Slovakia. In addition there are 9 gastropod species living only in greenhouses. There are a total of 219 species of gastropods, which breaks down to 51 species of freshwater gastropods, and 168 species of land gastropods, plus 28 species of bivalves living in the wild. There are 8 non-indigenous gastropod species (3 freshwater and 5 land species) and 3 species of bivalves in the wild in Slovakia. This is a total of 6 freshwater non-indigenous species of wild molluscs. ;Summary table of number of species There a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Non-marine Molluscs Of Ukraine
There are at least 287 species of non-marine molluscs living out of doors in Ukraine: 207 species of terrestrial molluscs,Balashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. ''Journal of Conchology''. 41 (1): 91-109. more than 50 freshwater species of gastropods Gural-Sverlova N.V. & Gural R.I. 2012. Scientific collections of State Natural History Museum of NAS of Ukraine: Malacological fund. Lviv. 254 pp.(in Ukrainian) and 30 species of freshwater bivalves Korniushin A.V. 2002On the Species Diversity of Freshwater Bivalve Mollusks in Ukraine and the Strategy of their Conservation'' Vestnik Zoologii. 36 (1): 9-23. (in Russian) Terrestrial molluscs The list is given on the basis of "An annotated checklist of the terrestrial molluscs of Ukraine" published in Journal of Conchology in 2012. In this article 203 species are listed as registered in Ukraine. Species that listed by the other sources are given with individual references. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Molluscs Recorded In Poland
There are approximately 265 species of non-marine molluscs living in the wild in Poland. Systematic list The list is in zoological order rather than alphabetical order. The Polish common name (where one exists) of each mollusc is given first, in parentheses, and then the scientific name. The source for the non-marine species on this list isCLECOM-PROJECT: Checklist of species-group taxa of continental Mollusca living in the Netherlands (CLECOM Section I) 14-07-2002with changes. Gastropoda Neritidae * (rozdepka rzeczna) ''Theodoxus fluviatilis fluviatilis'' (Linnaeus, 1758) ** '' Theodoxus fluviatilis littoralis'' (Linnaeus, 1758) Aciculidae * (igliczek karpacki) ''Acicula parcelineata'' (Clessin, 1911) * (igliczek lśniący) ''Platyla polita'' (Hartmann, 1840) Viviparidae * (żyworódka pospolita) ''Viviparus viviparus'' (Linnaeus, 1758) * (żyworódka rzeczna) ''Viviparus contectus'' (Millet, 1813) Bithyniidae * (zagrzebka pospolita) ''Bithynia tentaculata'' (Linnaeus, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
