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Gastropteridae
Gastropteridae, the bat-winged slugs, is a family (biology), family of sea slugs, gastropod molluscs in the Taxonomic rank, superfamily Philinoidea of the clade Cephalaspidea, the headshield slugs and bubble snails. The greatest diversity of these colourful small slugs is in the tropical and sub-tropical Indo-Pacific region. Description Gastropteridae is a fairly diverse family containing four genera and thirty-three described species. Adults have an internal reduced shell or no shell at all. The body is fairly short, usually under in length, but exceptionally up to . Compared to the closely related Philinidae, philinids and the Aglajidae, aglajids, the mantle cavity is small, and the gills are located further forward, in an exposed position. In most species, the hind end of the headshield is narrowed, raised and curved forward, sometimes being further forward than the front edge of the head. A radula is present, but no jaws. These slugs are mostly brightly coloured and distincti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cephalaspidea
The order Cephalaspidea, also known as the headshield slugs and bubble snails, is a major taxon of sea slugs and bubble snails, marine (ocean), marine gastropod mollusks within the larger clade Euopisthobranchia. Bubble shells is another common name for these families of marine gastropods, some of which have thin bubble-like shells. This clade contains more than 600 species. Members of this worldwide clade used to be considered the most ancestral of the opisthobranchs, but now they are considered as derived and specialized members of the Euthyneura Spengel, 1881. Headshield slugs are the most morphologically diverse group of all the opisthobranchs. Anatomy The vast majority possess a shell, although it may be reduced or internal. They have a well-developed headshield, a characteristic broadening at the head, which is used to plow beneath the surface of the sand. This headshield prevents the sand entering the mantle cavity. There is a muscular foot with or without parapodia (f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siphopteron
''Siphopteron'' is a genus of sea slugs, marine gastropod molluscs in the family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ... Gastropteridae. Species Species within the genus ''Siphopteron'' include: * '' Siphopteron alboaurantium'' (Gosliner, 1984) * '' Siphopteron brunneomarginatum'' (Carlson & Hoff, 1974) * '' Siphopteron citrinum'' (Carlson & Hoff, 1974) * '' Siphopteron flavobrunneum'' (Gosliner, 1984) * '' Siphopteron flavum'' (Tokioka & Baba, 1964) * '' Siphopteron fuscum'' (Baba & Tokioka, 1965) * '' Siphopteron ladrones'' (Carlson & Hoff, 1974) * '' Siphopteron leah'' Klussmann-Kolb & Klussmann, 2003 * '' Siphopteron michaeli'' (Gosliner & Williams, 1988) * '' Siphopteron nigromarginatum'' Gosliner, 1989 * '' Siphopteron pohnpei'' (Hoff & Carlson, 1983) * '' Sipho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropteron
''Gastropteron'' is a genus of small colorful sea slugs, marine gastropod molluscs in the family Gastropteridae.Bouchet, P.; Gofas, S. (2015). Gastropteron. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=181211 on 2015-06-30 Species Species within the genus ''Gastropteron'' include: * '' Gastropteron bicornutum'' Baba & Tokioka, 1965 * '' Gastropteron chacmol'' Gosliner, 1989 * '' Gastropteron hamanni'' Gosliner, 1989 * '' Gastropteron japonicum'' Tokioka & Baba, 1964 * '' Gastropteron odhneri'' Gosliner, 1989 * '' Gastropteron pacificum'' Bergh, 1894 * '' Gastropteron rubrum'' (Rafinesque, 1814) * '' Gastropteron sibogae'' Bergh, 1905 * '' Gastropteron sinense'' A. Adams, 1861 * '' Gastropteron vespertilium'' Gosliner & Armes, 1984 – flapping dingbat * '' Gastropteron viride'' Tokioka & Baba, 1964 Synonymy: * ''Gastropteron alboaurantium'' Gosliner, 1984 = '' Siphopteron alboaurantium'' (G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siphopteron Quadrispinosum
''Siphopteron quadrispinosum'' is a species of small sea slug, a marine (ocean), marine opisthobranch gastropod mollusc in the Order (biology), order Cephalaspidea, the headshield slugs. This slug is a Simultaneous hermaphrodite#Simultaneous hermaphrodites, simultaneous hermaphrodite. Distribution This species was originally identified in Hawaii (Kihei, Maui) and Papua New Guinea, and has a wide distribution throughout the western and central Pacific Ocean. Description ''Siphopteron quadrispinosum'' is a relatively small species of sea slug, growing to a maximum length of . The body is bright yellow, and the siphon is orange-red in colour. The parapodia and siphon differ between the Papua New Guinean and Haiwaiian populations. Papua New Guinean specimens have the colouration of the siphon continuing along the posterior shield. Also, the parapodia are entirely yellow. In Hawaiian populations, the parapodia have a white margin and the orange-red colouration along the posterior shie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philinoidea
Philinoidea is a taxonomic superfamily of sea slugs, specifically headshield slugs, marine gastropod mollusks in the order Cephalaspidea.MolluscaBase eds. (2021). MolluscaBase. Philinoidea Gray, 1850 (1815). Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=196322 on 2021-10-14 Anatomy The species in the Superfamily Philinoidea are generally small animals that have an internal or external shell, and a covered gill. Unlike some related forms, the visceral mass is not sharply set off from the rest of the body. Taxonomy According to the latest taxonomy, the following families are recognised in the Superfamily Philinoidea: * Aglajidae * Alacuppidae * Antarctophilinidae Moles, Avila & Malaquias, 2019 * Colpodaspididae * Gastropteridae * Laonidae * Philinidae * Philinoglossidae * Philinorbidae ** '' Philinorbis'' Habe, 1950 ** '' Pseudophiline'' Habe, 1976 * Scaphandridae Scaphandridae is a family (biology), fam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusc
Mollusca is a phylum of protostome, protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant taxon, extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The number of additional fossil species is estimated between 60,000 and 100,000, and the proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine biology, marine phylum, comprising about 23% of all the named marine organisms. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat, as numerous groups are freshwater mollusc, freshwater and even terrestrial molluscs, terrestrial species. The phylum is typically divided into 7 or 8 taxonomy (biology), taxonomic class (biology), classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurobiology, neurologi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 scientific specialists on each group of organism. These taxonomists control the quality of the information, which is gathered from the primary scientific literature as well as from some external regional and taxon-specific databases. WoRMS maintains valid names of all marine organisms, but also provides information on synonyms and invalid names. It is an ongoing task to maintain the registry, since new species are constantly being discovered and described by scientists; in addition, the nomenclature and taxonomy of existing species is often corrected or changed as new research is constantly being published. Subsets of WoRMS content are made available, and can have separate badging and their own home/launch pages, as "subregisters", such as th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gonopore
A gonopore, sometimes called a gonadopore, is a genital pore in many invertebrates. Hexapods, including insects, have a single common gonopore, except mayflies, which have a pair of gonopores. More specifically, in the unmodified female, it is the opening of the common oviduct, and in the male, it is the opening of the ejaculatory duct. The position of the gonopore varies considerably between groups, but is generally constant within groups, allowing its position to be used as a "segmental marker". In Malacostraca, it is on the sixth thoracic segment; in Symphyla, it is on the fourth trunk segment; in arachnids, it is on the second segment of the opisthosoma. In insects and centipedes, the gonopores are close to the animal's tail, while in millipede Millipedes (originating from the Latin , "thousand", and , "foot") are a group of arthropods that are characterised by having two pairs of jointed legs on most body segments; they are known scientifically as the class Dipl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penis
A penis (; : penises or penes) is a sex organ through which male and hermaphrodite animals expel semen during copulation (zoology), copulation, and through which male placental mammals and marsupials also Urination, urinate. The term ''penis'' applies to many intromittent organs of vertebrates and invertebrates, but not to all. As an example, the intromittent organ of most Cephalopoda is the hectocotylus, a specialized arm, and male spiders use their pedipalps. Even within the Vertebrata, there are morphological variants with specific terminology, such as Hemipenis, hemipenes. Etymology The word "penis" is taken from the Latin word for "Latin profanity#Synonyms and metaphors, tail". Some derive that from Proto-Indo-European language, Indo-European ''*pesnis'', and the Greek word πέος = "penis" from Indo-European ''*pesos''. Prior to the adoption of the Latin word in English, the penis was referred to as a "yard". The Oxford English Dictionary cites an example of the w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
