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Multicalyx
Multicalycidae is a family of trematodes in the order Aspidogastrida. It consists of one genus, ''Multicalyx'' Faust & Tang, 1936.Faust, E. & Tang, C. (1936). Notes on new aspidogastrid species, with a consideration of the phylogeny of the group. ''Parasitology'', 28(4), 487–501. Species *'' Multicalyx cristata'' Faust & Tang, 1936 *''Multicalyx elegans Multicalycidae is a family of trematodes in the order Aspidogastrida. It consists of one genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, ...'' (Olsson, 1869)Olsson, P. (1869). Nova genera parasitantia Copepodorum et Platyhelminthum. ''Lunds Universitets Arsskrift'', 6, 1–6. References Further reading *Thoney, D. A. & Burreson, E. M. (1988). Revision of the Multicalycidae (Aspidocotylea) with comments on postlarval development. ''Proceedings of the Helminthological Society of Washington'', 55(1), 62–67. Aspid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multicalyx Elegans
Multicalycidae is a family of trematodes in the order Aspidogastrida. It consists of one genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ..., ''Multicalyx'' Faust & Tang, 1936.Faust, E. & Tang, C. (1936). Notes on new aspidogastrid species, with a consideration of the phylogeny of the group. ''Parasitology'', 28(4), 487–501. Species *'' Multicalyx cristata'' Faust & Tang, 1936 *'' Multicalyx elegans'' (Olsson, 1869)Olsson, P. (1869). Nova genera parasitantia Copepodorum et Platyhelminthum. ''Lunds Universitets Arsskrift'', 6, 1–6. References Further reading *Thoney, D. A. & Burreson, E. M. (1988). Revision of the Multicalycidae (Aspidocotylea) with comments on postlarval development. ''Proceedings of the Helminthological Society of Washington'', 55(1), 62–67. Aspi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multicalyx Cristata
Multicalycidae is a family of trematodes in the order Aspidogastrida. It consists of one genus, ''Multicalyx'' Faust & Tang, 1936.Faust, E. & Tang, C. (1936). Notes on new aspidogastrid species, with a consideration of the phylogeny of the group. ''Parasitology'', 28(4), 487–501. Species *'' Multicalyx cristata'' Faust & Tang, 1936 *''Multicalyx elegans Multicalycidae is a family of trematodes in the order Aspidogastrida. It consists of one genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, ...'' (Olsson, 1869)Olsson, P. (1869). Nova genera parasitantia Copepodorum et Platyhelminthum. ''Lunds Universitets Arsskrift'', 6, 1–6. References Further reading *Thoney, D. A. & Burreson, E. M. (1988). Revision of the Multicalycidae (Aspidocotylea) with comments on postlarval development. ''Proceedings of the Helminthological Society of Washington'', 55(1), 62–67. Aspid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aspidogastrea
The Aspidogastrea (Ancient Greek: ' “shield”, ' “stomach/pouch”) is a small group of flukes comprising about 80 species. It is a subclass of the trematoda, and sister group to the Digenea. Species range in length from approximately one millimeter to several centimeters. They are parasites of freshwater and marine molluscs and vertebrates (cartilaginous and bony fishes and turtles). Maturation may occur in the mollusc or vertebrate host. None of the species has any economic importance, but the group is of very great interest to biologists because it has several characters which appear to be archaic. Morphology Shared characteristics Shared characteristics of the group are a large ventral disc with a large number of small alveoli ("suckerlets") or a row of suckers and a tegument with short protrusions, so-called "microtubercles". Aspidogastreans are an understudied class of parasitic flatworms that possess unique anterior attachment structures and are found exclusi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Biology, biological Kingdom (biology), kingdom Animalia (). With few exceptions, animals heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, have myocytes and are motility, able to move, can reproduce sexually, and grow from a hollow sphere of Cell (biology), cells, the blastula, during embryonic development. Animals form a clade, meaning that they arose from a single common ancestor. Over 1.5 million extant taxon, living animal species have been species description, described, of which around 1.05 million are insects, over 85,000 are molluscs, and around 65,000 are vertebrates. It has been estimated there are as many as 7.77 million animal species on Earth. Animal body lengths range from to . They have complex ecologies and biological interaction, interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flatworm
Platyhelminthes (from the Greek language, Greek πλατύ, ''platy'', meaning "flat" and ἕλμινς (root: ἑλμινθ-), ''helminth-'', meaning "worm") is a Phylum (biology), phylum of relatively simple bilaterian, Segmentation (biology), unsegmented, soft-bodied invertebrates commonly called flatworms or flat worms. Being acoelomates (having no coelom, body cavity), and having no specialised circulatory system, circulatory and respiratory system, respiratory organ (anatomy), organs, they are restricted to having flattened shapes that allow oxygen and nutrients to pass through their bodies by diffusion. The digestive cavity has only one opening for both ingestion (intake of nutrients) and egestion (removal of undigested wastes); as a result, the food can not be processed continuously. In traditional medicinal texts, Platyhelminthes are divided into Turbellaria, which are mostly non-parasitic animals such as planarians, and three entirely parasitic groups: Cestoda, Trematod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trematoda
Trematoda is a class of flatworms known as trematodes, and commonly as flukes. They are obligate internal parasites with a complex life cycle requiring at least two hosts. The intermediate host, in which asexual reproduction occurs, is a mollusk, usually a snail. The definitive host, where the flukes sexually reproduce, is a vertebrate. Infection by trematodes can cause disease in all five vertebrate classes: mammals, birds, amphibians, reptiles, and fish. Etymology Trematodes are commonly referred to as flukes. This term can be traced back to the Old English name for flounder, and refers to the flattened, rhomboidal shape of the organisms. The etymology of trematode stems from the Greek word ''trēmatṓdēs'', which means "pierced with holes", and refers to the worm's sucker, which pierces a hole in the host while the worm is attached and feeding. Taxonomy There are 18,000 to 24,000 known species of trematodes, divided into two subclasses — the Aspidogastrea and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aspidogastrida
Aspidogastrida is an order of trematodes in the subclass Aspidogastrea The Aspidogastrea (Ancient Greek: ' “shield”, ' “stomach/pouch”) is a small group of flukes comprising about 80 species. It is a subclass of the trematoda, and sister group to the Digenea. Species range in length from approximately on .... Families *Superfamily Aspidogastrioidea Poche, 1907Poche, F. (1907). Einige Bemerkungen zur Nomenklatur der Trematoden. ''Zoologischer Anzeiger'', 31, 124-126. ** Aspidogastridae Poche, 1907 ** Multicalycidae Gibson & Chinabut, 1984Gibson, D. & Chinabut, S. (1984). ''Rohdella siamensis'' gen. et sp. nov. (Aspidogastridae: Rohdellinae subfam. nov.) from fresh water fishes in Thailand, with a reorganization of the classification of the subclass Aspidogastrea. ''Parasitology'', 88(3), 383–393. ** Rugogastridae Schell, 1973Schell, S. C. (1973). ''Rugogaster hydrolagi'' gen. et sp. n. (Tremtoda: Aspidobothrea: Rugogastridae fam. n.) from the ratfish ''Hydrolagus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order (biology)
Order () is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families. What does and does not belong to each order is determined by a taxonomist, as is whether a particular order should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. The name of an order is usually written with a capital letter. For some groups of organisms, their orders may follow consist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
