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Siphoniulus
''Siphoniulus'' is a poorly known genus of millipede containing only two living species: ''S. alba'' from Indonesia, and ''S. neotropicus'' from Mexico and Guatemala. An additional two fossil species are known from Cretaceous amber. ''Siphoniulus'' species are the only members of the family (biology), family Siphoniulidae and order (biology), order Siphoniulida, making Siphoniulida the smallest millipede order. Few specimens are known, and their classification is contentious, although most recent studies place them as basal (phylogenetics), basal members of the Helminthomorpha ("worm-like millipedes"). Description Siphoniulids are small and eyeless. The head is drawn out into a conical beak, and lacks Tömösváry organs. The body is relatively long and narrow, containing up to 51 segments and reaching up to long, and 0.25 mm (0.01 in) wide. The body color ranges from pure white to tan, and has been described as resembling a nematode. The exoskeleton is smooth and ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diplopoda
Millipedes 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 Diplopoda, the name derived from this feature. Each double-legged segment is a result of two single segments fused together. Most millipedes have very elongated cylindrical or flattened bodies with more than 20 segments, while pill millipedes are shorter and can roll into a tight ball. Although the name "millipede" derives from the Latin for "thousand feet", no species was known to have 1,000 or more until the discovery of '' Eumillipes persephone'', which can have over 1,300 legs. There are approximately 12,000 named species classified into 16 orders and around 140 families, making Diplopoda the largest class of myriapods, an arthropod group which also includes centipedes and other multi-legged creatures. Most millipedes are slow-moving detritivores, eating decaying leaves and other dead plant matter. Some eat fungi o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
