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Sphaeromatidae
Sphaeromatidae (marine pillbug family) is a family of isopods, often encountered on rocky shores and in shelf waters in temperate zones. The family includes almost 100 genera and 619 known marine species (and about 65 in fresh water). Within these genera, there are groups that share distinctive morphologies; further research may reclassify these genus-groups as separate families. Description Many species have a dorsoventrally compressed body shape, often with a vaulted dorsum, and some are strongly flattened (scale-like). Sphaeromatidae are browsers or detritus feeders. Xynosphaera appear to have incisory mandibles; ''Xynosphaera colemani'' burrows into the tissue of alcyonacean corals. Some genera of Sphaeromatidae associate with sponges, particularly Oxinasphaera. Genera The family contains the following genera: *'' Afrocerceis'' Müller, 1995 *'' Agostodina'' Bruce, 1994 *''Amphoroidea'' H. Milne-Edwards, 1840 *'' Amphoroidella'' Baker, 1908 *'' Apemosphaera'' Bruce, 1994 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lekanesphaera Rugicauda, France 1
''Lekanesphaera'' is a genus of Isopod in the family Sphaeromatidae. It was split off from Sphaeroma by Karl Wilhelm Verhoeff, 1943.: The type species is ''L. monodi'' (formerly ''Sphaeroma monodi'' Arcangeli, 1934). Other well-studied species are ''L. glabella'' (Madera), ''L. rugicauda'' (Baltic), and ''L. hookeri'' (from Scotland and southeast Sweden to Italian lagoons). Because they inhabit intertidal zones such as estuaries, their adaptation to diurnal variations in factors such as salinity are often studied. Cladogram Lekanesphaera cladogram from the Catalogue of Life The Catalogue of Life is an online database that provides an index of known species of animals, plants, fungi, and microorganisms. It was created in 2001 as a partnership between the global Species 2000 and the American Integrated Taxonomic Info ... Lekanesphaera rugicauda ''Lekanesphaera rugicauda'', also called a "sea slater," is found in estuaries ranging from the Baltic, down to the Netherlands an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphoroidea
''Amphoroidea'' is a genus of isopod of the family Sphaeromatidae Sphaeromatidae (marine pillbug family) is a family of isopods, often encountered on rocky shores and in shelf waters in temperate zones. The family includes almost 100 genera and 619 known marine species (and about 65 in fresh water). Within the ..., containing the following species: * '' Amphoroidea angustata'' Baker, 1908 * '' Amphoroidea australiensis'' Dana, 1853 * '' Amphoroidea elegans'' Baker, 1911 * '' Amphoroidea falcifer'' G. Thomson, 1879 * '' Amphoroidea longipes'' Hurley & Jansen, 1977 * '' Amphoroidea media'' Hurley & Jansen, 1971 * '' Amphoroidea typa'' H. Milne-Edwards, 1840 References Sphaeromatidae Taxa named by Henri Milne-Edwards {{isopod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caecosphaeroma
''Caecosphaeroma'' is a troglodytic isopod genus in the family Sphaeromatidae found in caves of NE and SW France. The genus was split off from Monolistra by Adrien Dollfus in 1896; in both genera, the female carries about 10 fertilized eggs in its external marsupium (brood pouch); they are white in ''Monolistra'' but bluish-green in ''Caecosphaeroma''. ''C. burgundum'' is the most studied species. Description They measure from 2–20 mm long. As cave dwellers, they have lost their vision, but remain sensitive to light, which they shun. They are capable of volvation (rolling themselves into a ball) to protect themselves, rest, or sleep. During copulation the male and female embrace takes the form of two concentric spheres. Development Larva remain in the marsupium about 12 months, and the animals continue growing for several years, reaching a final length of 10–20 mm. Evolution The marine ancestors of ''Caecosphaeroma'' are believed to have migrated up the course ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gnorimosphaeroma Oregonensis
''Gnorimosphaeroma oregonense'', the Oregon pill bug, is a small intertidal isopod crustacean. It is an oval-shaped organism roughly 6 mm in length, and about twice as long as it is wide. The primary habitat of ''G. oregonense'' is the mid-Californian to Alaskan coast, where it inhabits tidal pool A tide pool or rock pool is a shallow pool of seawater that forms on the rocky intertidal shore. Many of these pools exist as separate bodies of water only at low tide. Many tide pool habitats are home to especially adaptable animals that ...s and the intertidal region up to depths of . References Sphaeromatidae Crustaceans of the eastern Pacific Ocean Crustaceans described in 1853 {{isopod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceratocephalus
''Bidens'' is a genus of flowering plants in the aster family, Asteraceae.''Bidens''. Flora of North America. The genus include roughly 230 species which are distributed worldwide.Knope, M. L., Funk, V. A., Johnson, M. A., Wagner, W. L., Datlof, E. M., Johnson, G., ... & Carlquist, S. (2020). Dispersal and adaptive radiation of ''Bidens'' (Compositae) across the remote archipelagoes of Polynesia. ''Journal of Systematics and Evolution'', ''58''(6), 805-822. Despite their global distribution, the systematics and taxonomy of the genus has been described as complicated and unorganized.Ganders, F. R., Berbee, M., & Perseyedi, M. (2000). ITS base sequence phylogeny in ''Bidens'' (Asteraceae): Evidence for the continental relatives of Hawaiian and Marquesan ''Bidens''. ''Syst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
