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Aplexa
''Aplexa'' is a genus of small, left-handed or sinistral, air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Physidae. Shell description These small snails are quite distinctive, because they have shells that are sinistral, which means that if you hold the shell such that the spire is pointing up, then the aperture is on the left-hand side. The shells of ''Aplexa'' species have a long and large aperture, a relatively high and pointed spire, and no operculum. The shells are thin and corneous and rather transparent. Species Species in the genus ''Aplexa'' include: * '' Aplexa atava'' White, 1877 * '' Aplexa brevispirata'' (Cossmann, 1913) * '' Aplexa disjuncta'' (White, 1879) * '' Aplexa elongata'' (Say, 1821) - the lance aplexa * '' Aplexa gigantea'' (Michaud, 1837) * '' Aplexa grasseti'' (Matheron, 1878) * '' Aplexa heberti'' (Deshayes, 1863) * ''Aplexa hypnorum'' (Linnaeus, 1758) - the moss bladder snail * '' Aplexa jaimei'' (Hermite, 1879 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aplexa Kasekikabe
''Aplexa'' is a genus of small, left-handed or sinistral, air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Physidae. Shell description These small snails are quite distinctive, because they have shells that are sinistral, which means that if you hold the shell such that the spire is pointing up, then the aperture is on the left-hand side. The shells of ''Aplexa'' species have a long and large aperture, a relatively high and pointed spire, and no operculum. The shells are thin and corneous and rather transparent. Species Species in the genus ''Aplexa'' include: * '' Aplexa atava'' White, 1877 * '' Aplexa brevispirata'' (Cossmann, 1913) * '' Aplexa disjuncta'' (White, 1879) * '' Aplexa elongata'' (Say, 1821) - the lance aplexa * '' Aplexa gigantea'' (Michaud, 1837) * '' Aplexa grasseti'' (Matheron, 1878) * '' Aplexa heberti'' (Deshayes, 1863) * ''Aplexa hypnorum'' (Linnaeus, 1758) - the moss bladder snail * '' Aplexa jaimei'' (Hermite, 1879) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aplexa Jaimei
''Aplexa'' is a genus of small, left-handed or sinistral, air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Physidae. Shell description These small snails are quite distinctive, because they have shells that are sinistral, which means that if you hold the shell such that the spire is pointing up, then the aperture is on the left-hand side. The shells of ''Aplexa'' species have a long and large aperture, a relatively high and pointed spire, and no operculum. The shells are thin and corneous and rather transparent. Species Species in the genus ''Aplexa'' include: * '' Aplexa atava'' White, 1877 * '' Aplexa brevispirata'' (Cossmann, 1913) * '' Aplexa disjuncta'' (White, 1879) * '' Aplexa elongata'' (Say, 1821) - the lance aplexa * '' Aplexa gigantea'' (Michaud, 1837) * '' Aplexa grasseti'' (Matheron, 1878) * '' Aplexa heberti'' (Deshayes, 1863) * ''Aplexa hypnorum'' (Linnaeus, 1758) - the moss bladder snail * '' Aplexa jaimei'' (Hermite, 1879) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aplexa Heberti
''Aplexa'' is a genus of small, left-handed or sinistral, air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Physidae. Shell description These small snails are quite distinctive, because they have shells that are sinistral, which means that if you hold the shell such that the spire is pointing up, then the aperture is on the left-hand side. The shells of ''Aplexa'' species have a long and large aperture, a relatively high and pointed spire, and no operculum. The shells are thin and corneous and rather transparent. Species Species in the genus ''Aplexa'' include: * '' Aplexa atava'' White, 1877 * '' Aplexa brevispirata'' (Cossmann, 1913) * '' Aplexa disjuncta'' (White, 1879) * '' Aplexa elongata'' (Say, 1821) - the lance aplexa * '' Aplexa gigantea'' (Michaud, 1837) * '' Aplexa grasseti'' (Matheron, 1878) * '' Aplexa heberti'' (Deshayes, 1863) * ''Aplexa hypnorum'' (Linnaeus, 1758) - the moss bladder snail * ''Aplexa jaimei'' (Hermite, 1879) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aplexa Grasseti
''Aplexa'' is a genus of small, left-handed or sinistral, air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Physidae. Shell description These small snails are quite distinctive, because they have shells that are sinistral, which means that if you hold the shell such that the spire is pointing up, then the aperture is on the left-hand side. The shells of ''Aplexa'' species have a long and large aperture, a relatively high and pointed spire, and no operculum. The shells are thin and corneous and rather transparent. Species Species in the genus ''Aplexa'' include: * '' Aplexa atava'' White, 1877 * '' Aplexa brevispirata'' (Cossmann, 1913) * '' Aplexa disjuncta'' (White, 1879) * '' Aplexa elongata'' (Say, 1821) - the lance aplexa * '' Aplexa gigantea'' (Michaud, 1837) * '' Aplexa grasseti'' (Matheron, 1878) * ''Aplexa heberti'' (Deshayes, 1863) * ''Aplexa hypnorum'' (Linnaeus, 1758) - the moss bladder snail * ''Aplexa jaimei'' (Hermite, 1879) * ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aplexa Gigantea
''Aplexa'' is a genus of small, left-handed or sinistral, air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Physidae. Shell description These small snails are quite distinctive, because they have shells that are sinistral, which means that if you hold the shell such that the spire is pointing up, then the aperture is on the left-hand side. The shells of ''Aplexa'' species have a long and large aperture, a relatively high and pointed spire, and no operculum. The shells are thin and corneous and rather transparent. Species Species in the genus ''Aplexa'' include: * '' Aplexa atava'' White, 1877 * '' Aplexa brevispirata'' (Cossmann, 1913) * '' Aplexa disjuncta'' (White, 1879) * '' Aplexa elongata'' (Say, 1821) - the lance aplexa * '' Aplexa gigantea'' (Michaud, 1837) * ''Aplexa grasseti'' (Matheron, 1878) * ''Aplexa heberti'' (Deshayes, 1863) * ''Aplexa hypnorum'' (Linnaeus, 1758) - the moss bladder snail * ''Aplexa jaimei'' (Hermite, 1879) * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aplexa Disjuncta
''Aplexa'' is a genus of small, left-handed or sinistral, air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Physidae. Shell description These small snails are quite distinctive, because they have shells that are sinistral, which means that if you hold the shell such that the spire is pointing up, then the aperture is on the left-hand side. The shells of ''Aplexa'' species have a long and large aperture, a relatively high and pointed spire, and no operculum. The shells are thin and corneous and rather transparent. Species Species in the genus ''Aplexa'' include: * '' Aplexa atava'' White, 1877 * '' Aplexa brevispirata'' (Cossmann, 1913) * '' Aplexa disjuncta'' (White, 1879) * '' Aplexa elongata'' (Say, 1821) - the lance aplexa * ''Aplexa gigantea'' (Michaud, 1837) * ''Aplexa grasseti'' (Matheron, 1878) * ''Aplexa heberti'' (Deshayes, 1863) * ''Aplexa hypnorum'' (Linnaeus, 1758) - the moss bladder snail * ''Aplexa jaimei'' (Hermite, 1879) * ''A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aplexa Brevispirata
''Aplexa'' is a genus of small, left-handed or sinistral, air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Physidae. Shell description These small snails are quite distinctive, because they have shells that are sinistral, which means that if you hold the shell such that the spire is pointing up, then the aperture is on the left-hand side. The shells of ''Aplexa'' species have a long and large aperture, a relatively high and pointed spire, and no operculum. The shells are thin and corneous and rather transparent. Species Species in the genus ''Aplexa'' include: * '' Aplexa atava'' White, 1877 * '' Aplexa brevispirata'' (Cossmann, 1913) * ''Aplexa disjuncta'' (White, 1879) * '' Aplexa elongata'' (Say, 1821) - the lance aplexa * ''Aplexa gigantea'' (Michaud, 1837) * ''Aplexa grasseti'' (Matheron, 1878) * ''Aplexa heberti'' (Deshayes, 1863) * ''Aplexa hypnorum'' (Linnaeus, 1758) - the moss bladder snail * ''Aplexa jaimei'' (Hermite, 1879) * ''Ap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aplexa Atava
''Aplexa'' is a genus of small, left-handed or sinistral, air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Physidae. Shell description These small snails are quite distinctive, because they have shells that are sinistral, which means that if you hold the shell such that the spire is pointing up, then the aperture is on the left-hand side. The shells of ''Aplexa'' species have a long and large aperture, a relatively high and pointed spire, and no operculum. The shells are thin and corneous and rather transparent. Species Species in the genus ''Aplexa'' include: * '' Aplexa atava'' White, 1877 * ''Aplexa brevispirata'' (Cossmann, 1913) * ''Aplexa disjuncta'' (White, 1879) * '' Aplexa elongata'' (Say, 1821) - the lance aplexa * ''Aplexa gigantea'' (Michaud, 1837) * ''Aplexa grasseti'' (Matheron, 1878) * ''Aplexa heberti'' (Deshayes, 1863) * ''Aplexa hypnorum'' (Linnaeus, 1758) - the moss bladder snail * ''Aplexa jaimei'' (Hermite, 1879) * ''Apl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aplexa Hypnorum
''Aplexa hypnorum'', or by the common name, the moss bladder snail, is a species of small air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Physidae, a family which are sometimes known as the bladder snails. As is true of all physids, the shell is sinistral, or left-handed. The species inhabits temporary water bodies and occurs in the Eurosiberian Boreo-temperate or possibly the Eurasian Boreo-temperate if East Siberia specimens are correctly identified. It may be Holarctic, again if North American specimens are correctly identified. Distribution * Belgium * British Isles * Czech Republic 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 * Slovakia * Denmark * Germany * Italy * Neth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physidae
Physidae, common name the bladder snails, is a monophyletic taxonomic family of small air-breathing freshwater snails, aquatic pulmonate gastropod molluscs in the superfamily Lymnaeoidea .MolluscaBase eds. (2021). MolluscaBase. Physidae Fitzinger, 1833. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=160452 on 2021-06-26 Overview These fresh water snails are present in aquariums and ponds, as well as in wild areas. They are commonly referred to as tadpole snails or pouch snails. They eat algae, diatoms and detritus including dead leaves. The populations are regulated by the abundance of food and space. They are widespread, abundant, and tolerant to pollution. These snails are common in the North Temperate to Arctic Zones and throughout the Americas, in readily accessible habitats such as ditches, ponds, lakes, small streams, and rivers. The family has been recognized since the 19th century, and yet there has been no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aplexa Elongata
''Sibirenauta elongata'' is a species of gastropods belonging to the family Physidae Physidae, common name the bladder snails, is a monophyletic taxonomic family of small air-breathing freshwater snails, aquatic pulmonate gastropod molluscs in the superfamily Lymnaeoidea .MolluscaBase eds. (2021). MolluscaBase. Physidae Fitzin .... The species is found in Northern America. References Physidae {{Improve categories, date=February 2022 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operculum (gastropod)
The operculum (; ) is a corneous or calcareous anatomical structure like a trapdoor that exists in many (but not all) groups of sea snails and freshwater snails, and also in a few groups of land snails; the structure is found in some marine and freshwater gastropods, and in a minority of terrestrial gastropods, including the families Helicinidae, Cyclophoridae, Aciculidae, Maizaniidae, Pomatiidae, etc. The operculum is attached to the upper surface of the foot and in its most complete state, it serves as a sort of "trapdoor" to close the aperture of the shell when the soft parts of the animal are retracted. The shape of the operculum varies greatly from one family of gastropods to another. It is fairly often circular, or more or less oval in shape. In species where the operculum fits snugly, its outline corresponds exactly to the shape of the aperture of the shell and it serves to seal the entrance of the shell. Many families have opercula that are reduced in size, and which a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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