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Chtonobdella
''Chtonobdella'' is a genus of land leeches belonging to the family Haemadipsidae, erected by Adolph Grube in 1866.Grube AE (1866) ''Landblutegeln asu Südaustralien. Jahres-Bericht der Schlesischen Gesellschaft für Vaterländische Cultur'' 43: 66. Species are mostly found in Australia and New Guinea, with isolated records from other Pacific islands and Madagascar. Taxonomy and description The name ''Chtonobdella'' is derived from two Greek elements: ''chton'', meaning 'ground' or 'land', and ''bdella'', meaning 'leech': thus similar to other genera in the family Haemadipsidae, the jawed land leeches. In his original description of the type species, Adolph Grube used the name ''Hirudo limbata'', but suggested the new genus name ''Chtonobdella''. Confusingly, Grube later referred to the species again as ''H. limbata'' and other scholars retained the name; both this species and '' C. fallax'', from Madagascar, have also been placed in the related genus '' Haemadipsa''. As ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chtonobdella Whitmani
''Chtonobdella'' is a genus of land leeches belonging to the family Haemadipsidae, erected by Adolph Grube in 1866.Grube AE (1866) ''Landblutegeln asu Südaustralien. Jahres-Bericht der Schlesischen Gesellschaft für Vaterländische Cultur'' 43: 66. Species are mostly found in Australia and New Guinea, with isolated records from other Pacific islands and Madagascar. Taxonomy and description The name ''Chtonobdella'' is derived from two Greek elements: ''chton'', meaning 'ground' or 'land', and ''bdella'', meaning 'leech': thus similar to other genera in the family Haemadipsidae, the jawed land leeches. In his original description of the type species, Adolph Grube used the name ''Hirudo limbata'', but suggested the new genus name ''Chtonobdella''. Confusingly, Grube later referred to the species again as ''H. limbata'' and other scholars retained the name; both this species and '' C. fallax'', from Madagascar, have also been placed in the related genus '' Haemadipsa''. As wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chtonobdella Limbata
''Chtonobdella limbata'' is a species of terrestrial blood-sucking leech, commonly found in subtropical forests of Australia. Contracted, the leeches are about long, but once extended they can reach or even in length. They have two saw-like jaws which they use to cut open their victims' skin. In colour, they are mostly dark, with some coloured stripes. Their rear suckers are oval-shaped and have a prehensile protuberance on their tips. The first stage of their feeding has been studied in detail, and shows some differences with other leeches. ''C. limbata'' is found along the east coast of Australia, especially in the state of New South Wales. It has adapted to withstand drought-like conditions by anhydrobiosis; they burrow into the ground and enter an inanimate state that resists dehydration. In this state they can survive for several months. They are exclusively ground-dwellers, and never enter water or climb onto forest vegetation. Classification ''Chtonobdella limbata'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haemadipsidae
__NOTOC__ Haemadipsidae (From Greek "haima" and "dipsa" ("blood" and "thirst", respectively)) are a family of jawed leeches. They are a monophyletic group of hirudiniform proboscisless leeches. These leeches have five pairs of eyes, with the last two separated by two eyeless segments. The family is monotypic, containing only the subfamily Haemadipsinae. However, the family can apparently be divided into two or three distinct lineages. At least one of the proposed splits, while not a distinct family, might be a valid subfamily. Haemadipsids have two or three jaws. The two-jawed (duognathous) species were classified in a number of largely monotypic or non-monophyletic genera, so they were placed into a single monophyletic genus called ''Chtonobdella''. To increase grip, their caudal suckers have textured "friction" or "sucker" rays. Commonly known as jawed land leeches, these annelids are known from subtropical and tropical regions around the Indian and Pacific Ocean. Well-kn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chtonobdella Fallax
''Chtonobdella fallax'' is a species of leeches belonging to the family Haemadipsidae; also known by its synonym ''Malagabdella fallax'' and having originally been placed in the related jawed land leech genus '' Haemadipsa'' by Raphaël Blanchard in 1917.Blanchard R (2017Monographie des hémadipsines (sangsues terrestres). ''Bulletin de la Societe de Pathologie Exotique''10: 640–675. It is a relatively common species in the tropical forests of Madagascar Madagascar, officially the Republic of Madagascar, is an island country that includes the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's List of islands by area, f .... ''C. fallax'' is notable in that (before final identification) video evidence was provided by Mai Fahmy and Michael Tessler of this species gathering energy and springing off a leaf, resolving a long-standing debate about whether or not leeches could jump. References Extern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leeches
Leeches are segmented parasitic or predatory worms that comprise the subclass Hirudinea within the phylum Annelida. They are closely related to the oligochaetes, which include the earthworm, and like them have soft, muscular segmented bodies that can lengthen and contract. Both groups are hermaphrodites and have a clitellum, but leeches typically differ from the oligochaetes in having suckers at both ends and ring markings that do not correspond with their internal segmentation. The body is muscular and relatively solid; the coelom, the spacious body cavity found in other annelids, is reduced to small channels. The majority of leeches live in freshwater habitats, while some species can be found in terrestrial or marine environments. The best-known species, such as the medicinal leech, ''Hirudo medicinalis'', are hematophagous, attaching themselves to a host with a sucker and feeding on blood, having first secreted the peptide hirudin to prevent the blood from clotting. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leech
Leeches are segmented parasitism, parasitic or Predation, predatory worms that comprise the Class (biology), subclass Hirudinea within the phylum Annelida. They are closely related to the Oligochaeta, oligochaetes, which include the earthworm, and like them have soft, muscular segmented bodies that can lengthen and contract. Both groups are hermaphrodites and have a clitellum, but leeches typically differ from the oligochaetes in having suckers at both ends and ring markings that do not correspond with their internal segmentation. The body is muscular and relatively solid; the coelom, the spacious body cavity found in other annelids, is reduced to small channels. The majority of leeches live in freshwater habitats, while some species can be found in terrestrial or marine environments. The best-known species, such as the medicinal leech, ''Hirudo medicinalis'', are hematophagous, attaching themselves to a host with a sucker and feeding on blood, having first secreted the pepti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global Biodiversity Information Facility
The Global Biodiversity Information Facility (GBIF) is an international organisation that focuses on making scientific data on biodiversity available via the Internet using web services. The data are provided by many institutions from around the world; GBIF's information architecture makes these data accessible and searchable through a single portal. Data available through the GBIF portal are primarily distribution data on plants, animals, fungi, and microbes for the world, and scientific names data. The mission of the GBIF is to facilitate free and open access to biodiversity data worldwide to underpin sustainable development. Priorities, with an emphasis on promoting participation and working through partners, include mobilising biodiversity data, developing protocols and standards to ensure scientific integrity and interoperability, building an informatics architecture to allow the interlinking of diverse data types from disparate sources, promoting capacity building and cat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic
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 syste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
