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Rhynchelmis Orientalis
''Rhynchelmis orientalis'' is a freshwater worm. It was described by Yamaguchi in 1936 from specimens collected on Hokkaidō is Japan's second largest island and comprises the largest and northernmost prefecture, making up its own region. The Tsugaru Strait separates Hokkaidō from Honshu; the two islands are connected by the undersea railway Seikan Tunnel. The la .... It can be distinguished from other species in the genus by the very long spermathecae running in several posterior segments into spermsacs, disconnected to the alimentary tract, as well as a vestigial anterior vas deferens. The genital elements are positioned in a fashion similar to that of '' Rhynchelmis vejdovskyi''. ''Rhynchelmis orientalis'' is pinkish to purplish, of variable size. The number of segments is between 196 and 245, and the setae are one-pointed. References {{Taxonbar, from=Q7321678 Lumbriculidae Animals described in 1936 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hokkaidō
is Japan's second largest island and comprises the largest and northernmost prefecture, making up its own region. The Tsugaru Strait separates Hokkaidō from Honshu; the two islands are connected by the undersea railway Seikan Tunnel. The largest city on Hokkaidō is its capital, Sapporo, which is also its only ordinance-designated city. Sakhalin lies about 43 kilometers (26 mi) to the north of Hokkaidō, and to the east and northeast are the Kuril Islands, which are administered by Russia, though the four most southerly are claimed by Japan. Hokkaidō was formerly known as ''Ezo'', ''Yezo'', ''Yeso'', or ''Yesso''. Nussbaum, Louis-Frédéric. (2005). "Hokkaidō" in Although there were Japanese settlers who ruled the southern tip of the island since the 16th century, Hokkaido was considered foreign territory that was inhabited by the indigenous people of the island, known as the Ainu people. While geographers such as Mogami Tokunai and Mamiya Rinzō explored the isla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhynchelmis Vejdovskyi
''Rhynchelmis'' is the genus of 30 species of aquatic oligochaetes from the Northern Hemisphere, with 11 species from North America and 19 from Eurasia. They are part of the family Lumbriculidae, which are among the largest of the microdriles. They are generally defined as having atria in segment X and spermathecae in segment VIII (Fend & Brinkhurst, 2000). The prostomium generally has a proboscis A proboscis () is an elongated appendage from the head of an animal, either a vertebrate or an invertebrate. In invertebrates, the term usually refers to tubular mouthparts used for feeding and sucking. In vertebrates, a proboscis is an elong ..., from which the genus has got its name. ''Rhynchelmis'' contains several subgenera, all of which have previously held genus rank: ''Rhynchelmoides'' with four species, ''Sutroa'' with six species, and ''Pseudorhynchelmis'' with nine species. Further, four species - '' Rh. aleutensis'', '' Rh. brooksi'', '' Rh. malevici'' and '' Rh. ori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lumbriculidae
The Lumbriculidae are a family of microdrile oligochaetes common in freshwater environments, including streams, lakes, marshes, wells and groundwater. They should not be confused with the earthworm family Lumbricidae. Many species and genera are highly endemic, mainly in Siberia and the western parts of North America. Lumbriculidae are the only family in the order Lumbriculida. The family contains: *''Bichaeta'' ::'' Bichaeta sanguinea'' *''Cookidrilus'' ::'' Cookidrilus speluncaeus'' *'' Eclipidrilus'' :Subgenus ''Eclipidrilus'' ::'' Eclipidrilus frigidus'' ::'' Eclipidrilus asymmetricus'' ::'' Eclipidrilus ithys'' :Subgenus ''Leptodrilus'' ::'' Eclipidrilus fontanus'' ::'' Eclipidrilus lacustris'' :Subgenus ''Premnodrilus'' ::'' Eclipidrilus daneus'' ::'' Eclipidrilus palustris'' :''Incertae sedis'' ::'' Eclipidrils pacificus'' *'' Eremidrilus'' ::'' Eremidrilus allegheniensis'' ::'' Eremidrilus coyote'' ::'' Eremidrilus elegans'' ::'' Eremidrilus felini'' ::'' Eremidrilus rit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
