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Onchidiidae
Onchidiidae are a family of small, air-breathing sea (and land) slugs. They are shell-less marine (except for two species)preview pulmonate gastropod molluscs. Onchidiidae is the only family within the superfamily Onchidioidea. These animals are quite unusual in that they are emphatically not opisthobranchs with gills, as are almost all of the sea slugs. Instead these creatures are pulmonates. They are more closely related to air-breathing land and freshwater snails and slugs than they are to most other sea snails and sea slugs. This family has no subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). 143 species names were created within the Onchidiidae, but until recently few species could be identified. In the late 1920s Hoffmann revised the family (based on the descriptions), and classified the described species into genera. Labbé later continued the revision and named many new genera in his classification of onchidiid slugs. Labbé also mad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Onchidium
''Onchidium'' is a genus of air-breathing sea slugs, shell-less marine (ocean), marine pulmonate gastropod mollusks in the family (biology), family Onchidiidae. Species Some authors recognize only four species in the genus. The World Register of Marine Species lists six species as accepted. * ''Onchidium melakense'' Dayrat & Goulding, 2019 * ''Onchidium multiradiatum'' C. Semper, 1882 * ''Onchidium nebulosum'' C. Semper, 1880 * ''Onchidium reevesii'' (J. E. Gray, 1850) * ''Onchidium stuxbergi'' (Westerlund, 1883) * ''Onchidium typhae'' Buchannan, 1800 ''Onchidium multinotatum'', originally described within the genus in 1883, is regarded as a ''nomen dubium''. References * Starobogatov, Y. I. (1970). Fauna Molliuskov i Zoogeograficheskoe Raionirovanie Kontinental'nykh Vodoemov Zemnogo Shara [The Molluscan Fauna and Zoogeographical Zoning of the Continental Water Bodies of the World]. Nauka. Leningrad. 372 p., 12 tables * Labbé A. (1935). Sur une forme nouvelle de Silicoderm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Onchidella
''Onchidella'' is a genus of small, air-breathing sea slugs, shell-less marine pulmonate gastropod molluscs in the family Onchidiidae. Species According to the World Register of Marine Species (WoRMS), the following species with valid names are included within the genus ''Onchidella'' : * ''Onchidella accrensis'' (Plate, 1893) * '' Onchidella armadilla'' (Mörch, 1863) * '' Onchidella binneyi'' Stearns, 1894 * '' Onchidella borealis'' Dall, 1871 - northwest ''Onchidella'' * ''Onchidella brattstroemi'' Ev. Marcus, 1978 * '' Onchidella campbelli'' Filhol, 1880 * '' Onchidella carpenteri'' (W. G. Binney, 1860) (nomen dubium) * '' Onchidella celtica'' (Cuvier, 1817) * '' Onchidella flavescens'' Wissel, 1904 * '' Onchidella floridana'' ( Dall, 1885) - Florida ''Onchidella'' * '' Onchidella incisa'' (Quoy & Gaimard, 1832) * '' Onchidella indolens'' (Couthouy in Gould, 1852) * '' Onchidella kurodai'' (Taki, 1935) * '' Onchidella maculata'' (Plate, 1893) * '' Onchidella marginata'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semperoncis Montana
''Semperoncis'' is a genus of air-breathing sea slugs, a shell-less marine pulmonate gastropod mollusks in the family Onchidiidae. Species According to the World Register of Marine Species The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive catalogue and list of names of marine organisms. Content The content of the registry is edited and maintained by scien ... (WoRMS), the following species with a valid name are included within the genus ''Semperoncis'': * '' Semperoncis glabra'' (Semper, 1885) * '' Semperoncis huberti'' (Labbé, 1934) (''nomen dubium'') * '' Semperoncis montana'' (Plate, 1893) References * Dayrat, B. (2009) ''Review of the current knowledge of the systematics of Onchidiidae (Mollusca: Gastropoda: Pulmonata) with a checklist of nominal species''. Zootaxa 2068: 1-26 Onchidiidae {{Onchidiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Onchidina
''Onchidina'' is a monotypic genus of air-breathing sea slugs, a shell-less marine pulmonate gastropod mollusks in the family Onchidiidae. Its sole member is the species ''Onchidina australis.'' Uniquely within the Onchidiidae, ''O. australis'' lives above the tidal zone in a fully terrestrial habitat. Description (Original description of ''Onchidina australis'') The dorsal surface of the mollusk is strongly convex, while the ventral surface is flat. The dorsal mantle surface exhibits strong, irregular granulation, lacking any evidence of pseudobranchiae. Larger tubercles are distributed irregularly, spaced approximately 3-4 mm apart. The dorsal coloration is yellowish-gray, interspersed with darker speckles and dots. Two more or less indistinct bands of spots traverse the dorsal surface longitudinally, maintaining a consistent distance from each other and from the mantle margin. The larger tubercles on the dorsal surface are whitish. The ventral surfaces of the foot and head ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marmaronchis
''Marmaronchis'' is a genus of air-breathing sea slugs, a shell-less marine pulmonate gastropod mollusks in the family Onchidiidae Onchidiidae are a family of small, air-breathing sea (and land) slugs. They are shell-less marine (except for two species)preview pulmonate gastropod molluscs. Onchidiidae is the only family within the superfamily Onchidioidea. These animals a ....MolluscaBase eds. (2021). MolluscaBase. Marmaronchis Dayrat & Goulding, 2018. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1315251 on 2021-09-24 Species Species within the genus ''Marmaronchis '' include: * '' Marmaronchis marmoratus'' (Lesson, 1831) * '' Marmaronchis vaigiensis'' (Quoy & Gaimard, 1825) References External links Dayrat B., Goulding T.C., Khalil M., Lozouet P. & Tan S.H. (2018). Systematic revision one clade at a time: A new genus of onchidiid slugs from the Indo-West Pacific (Gastropoda: Euthyneura: Pulmonata). Raffle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoffmannola
''Hoffmannola'' is a genus of air-breathing sea slugs, a shell-less marine pulmonate gastropod mollusk in the family Onchidiidae Onchidiidae are a family of small, air-breathing sea (and land) slugs. They are shell-less marine (except for two species)preview pulmonate gastropod molluscs. Onchidiidae is the only family within the superfamily Onchidioidea. These animals a .... Species Species within the genus ''Hoffmannola'' include: * '' Hoffmannola hansi'' Ev. Marcus & Er. Marcus, 1967 * '' Hoffmannola lesliei'' (Stearns, 1892) References Onchidiidae Monotypic gastropod genera {{Onchidiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Onchidella Nigricans
''Onchidella nigricans'' is a species of small, air-breathing sea slug, a shell-less marine pulmonate gastropod mollusc in the family Onchidiidae. Distribution This species occurs in New Zealand, as well as on the coast of south-eastern Australia, where it is common. Powell A. W. B., ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979 Feeding ''O. nigricans'' is a general herbivore feeding on algae. It also consumes zooplankton. Habitat This species can be found in the intertidal zone The intertidal zone or foreshore is the area above water level at low tide and underwater at high tide; in other words, it is the part of the littoral zone within the tidal range. This area can include several types of habitats with various ... on a variety of habitats. References Further reading * Miller M & Batt G, ''Reef and Beach Life of New Zealand'', William Collins (New Zealand) Ltd, Auckland, New Zealand 1973 Onchidiidae Gastropods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Slug
Sea slug is a common name for some Marine biology, marine invertebrates with varying levels of resemblance to terrestrial Slug, slugs. Most creatures known as sea slugs are gastropods, i.e. they are Sea snail, sea snails (marine gastropod mollusks) that, over evolutionary time, have either entirely lost their shells or have seemingly lost their shells due to having a significantly reduced or internal shell. The name "sea slug" is often applied to Nudibranch, nudibranchs and a paraphyletic set of other marine gastropods without apparent Gastropod shell, shells. Sea slugs have an enormous variation in body shape, color, and size. Most are partially translucent. The often bright colors of Coral reef, reef-dwelling species imply that these animals are under constant threat of predators. Still, the color can warn other animals of the sea slug's toxic stinging cells (nematocysts) or offensive taste. Like all Gastropod, gastropods, they have small, razor-sharp teeth called Radula, rad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Love Darts
A love dart (also known as a gypsobelum, shooting darts, or just as darts) is a sharp, calcium carbonate, calcareous or chitinous Dart (missile), dart which some hermaphroditic land snails and slugs create. Love darts are both formed and stored internally in a dart sac. These darts are made in sexually mature animals only, and are used as part of the sequence of events during courtship display, courtship, before actual mating takes place. Darts are quite large compared to the size of the animal: in the case of the semi-slug genus ''Parmarion'', the length of a dart can be up to one fifth that of the semi-slug's foot. The process of using love darts in snails is a form of sexual selection. Prior to copulation (zoology), copulation, each of the two snails (or slugs) attempts to "shoot" one (or more) darts into the other snail (or slug). There is no organ to receive the dart; this action is more analogous to stabbing, or to being shot with an arrow or flechette. The dart does not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slug
Slug, or land slug, is a common name for any apparently shell-less Terrestrial mollusc, terrestrial gastropod mollusc. The word ''slug'' is also often used as part of the common name of any gastropod mollusc that has no shell, a very reduced shell, or only a small internal shell, particularly sea slugs and semi-slugs (this is in contrast to the common name ''snail'', which applies to gastropods that have a coiled shell large enough that they can fully retract their soft parts into it). Various Taxonomy (biology), taxonomic families of land slugs form part of several quite different evolutionary lineages, which also include snails. Thus, the various families of slugs are not closely related, despite the superficial similarity in overall body form. The shell-less condition has arisen many times independently as an example of convergent evolution, and thus the category "slug" is Polyphyly, polyphyletic. Taxonomy Of the six orders of Pulmonata, two – the Onchidiacea and Soleoli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy Of The Gastropoda (Bouchet & Rocroi, 2005)
The taxonomy of the Gastropoda as it was revised in 2005 by Philippe Bouchet and Jean-Pierre Rocroi is a system for the scientific classification of gastropod mollusks (Gastropods are a taxonomic class of animals which consists of snails and slugs of every kind, from the land, from freshwater, and from saltwater). The paper setting out this taxonomy was published in the journal '' Malacologia''. The system encompasses both living and extinct groups, as well as some fossils whose classification as gastropods is uncertain. The Bouchet & Rocroi system was the first complete gastropod taxonomy that primarily employed the concept of clades, and was derived from research on molecular phylogenetics; in this context a clade is a "natural grouping" of organisms based upon a statistical cluster analysis. In contrast, most of the previous overall taxonomic schemes for gastropods relied on morphological features to classify these animals, and used taxon ranks such as order, superorder ... [...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 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 Gastrop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
