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Elassoctenus
''Elassoctenus'' is a genus of spiders in the family Miturgidae. It was first described in 1909 by Simon. , it contains only one species, ''Elassoctenus harpax'', found in western Australia. References Miturgidae Monotypic Araneomorphae genera Spiders of Australia {{Araneomorphae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miturgidae
Miturgidae is a family of araneomorph spiders that includes nearly 170 species in 29 genera worldwide. First described by Eugène Simon in 1886, it has been substantially revised, and includes the previous family Zoridae as a synonym, and excludes the family Xenoctenidae. Several genera have also been removed, such as the large genus '' Cheiracanthium'', which was transferred to the Cheiracanthiidae. Description Spiders of the Miturgidae family are small-to-medium sized spiders, with most genera possessing a brown and gray band pattern on the spider's body. Behavior Miturgidae spiders are nocturnal. They live on the ground or on foliage, where they build a sac-like shelter on vegetation or under rocks or other debris. Mother spiders will deposit and protect her eggs in these shelters. Genera , the World Spider Catalog accepts the following genera: *'' Argoctenus'' L. Koch, 1878 — New Zealand, Australia, Papua New Guinea *'' Diaprograpta'' Simon, 1909 — Australia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic Araneomorphae Genera
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. Theoretical implications Monotypic taxa present several important theoretical challenges in biological classification. One key issue is known as "Gregg's Paradox": if a single species is the only member of multiple hierarchical levels (for example, being the only species in its genus, which is the only genus in its family), then each level needs a distinct definition to maintain logical structure. Otherwise, the different taxonomic ranks become effectively identical, which creates problems for organizing biological diversity in a hierarchical system. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |