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Aspidogastrida
Aspidogastrida is an Order (biology), order of Trematoda, trematodes in the Class (biology)#Hierarchy of ranks, subclass Aspidogastrea. 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 collei'' (Lay & Bennett, 1839). ''The Journal of Parasitology'', 59, 803–805. References Further reading *Alves, P., Vieira, F., Santos, C., Scholz, T. & Luque, J. (2015). A checklist o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aspidogastridae
Aspidogastridae is a Family (biology), family of Trematoda, trematodes in the Order (biology), order Aspidogastrida. Genera *Subfamily Aspidogastrinae Poche, 1907 **''Aspidogaster'' Baer, 1827Baer, K. E. (1827). Beiträge zur Kenntnis der niedern Thiere. ''Nova Acta Academiae Caesareae Leopoldino-Carolinae Naturae Curiosorum'', 13, 523–762. **''Lobatostoma'' Eckmann, 1932Eckmann, F. (1932). Über zwei neue Trematoden der Gattung ''Aspidogaster''. ''Zeitschrift für Parasitenkunde'', 4, 395–399. **''Lophotapsis'' Looss, 1902Looss, A. (1902). Über neue und bekannte Trematoden aus Seeschildkröten. Nebst Eröterung zur Systematik und Nomenclatur. ''Zoologischer Jahrbücher, Abreilung zür Systematik, Geographie, und Biologie der Tiere'', 16, 411–894. **''Multicotyle'' Dawes, 1941Dawes, B. (1941). On ''Multicotyle purvisi'', n. g. n. sp., an aspidogastrid trematode from the river turtle, ''Siebenrockiella crassicollis'', in Malaya. ''Parasitology'', 33, 300–305. **''Neosychno ... [...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". Larval physiology Larvae of some species have ciliated patches. Those of ''Multicotyle purvisi'' have four patches on the anterior side of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multicalycidae
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 ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus cl ...'' (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. Aspido ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rugogastridae
Rugogastridae is a family of trematodes in the order Aspidogastrida. It consists of a single genus, ''Rugogaster'' Schell, 1973. Species *'' Rugogaster callorhinci'' Amato & Pereira, 1995Amato, J. & Pereira, J., Jr. (1995). A new species of ''Rugogaster'' (Aspidobothrea: Rugogastridae) parasite of the elephant fish, ''Callorhinchus callorhynchi'' (Callorhinchidae), from the estuary of the La Plata River, Coasts of Uruguay and Argentina. ''Revista Brasileira de Parasitologia Veterinária'', 4(1), 1–7. *'' Rugogaster hydrolagi'' Schell, 1973 Morphological characteristics Species of ''Rugogaster'' are parasitic in the rectal glands of various holocephalan fishes. They are characterized by a row of rugae, numerous testes A testicle or testis (plural testes) is the male reproductive gland or gonad in all bilaterians, including humans. It is homologous to the female ovary. The functions of the testes are to produce both sperm and androgens, primarily testostero ..., and two c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flatworm
The flatworms, flat worms, Platyhelminthes, or platyhelminths (from the Greek πλατύ, ''platy'', meaning "flat" and ἕλμινς (root: ἑλμινθ-), ''helminth-'', meaning "worm") are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates. Unlike other bilaterians, they are acoelomates (having no body cavity), and have no specialized circulatory and respiratory organs, which restricts them 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 cannot 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, Trematoda and Monogenea; however, since the turbellarians have since been proven no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trematoda
Trematoda is a class of flatworms known 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 usually a snail. The definitive host, where the flukes sexually reproduce, is a vertebrate. Infection by trematodes can cause disease in all five traditional 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. Taxonomy There are 18,000 to 24,000 known species of trematodes, divided into two subclasses — the Aspidogastrea and the Digenea. Aspidogastrea is the smaller subclass, comprising 61 species. These flukes mainly infect bivalves and bony fishes.https://www.biotaxa.org/Zootaxa/article/view/zootaxa.3918.3.2 Digenea — which comprise the majority of trematodes — are f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert-Philippe Dollfus
Robert-Philippe Dollfus (20 July 1887 in Paris, France – 19 February 1976 in Paris, France) was a French zoologist and parasitologist. Stunkard, H.W. 1977. In Memoriam Robert-Philippe Dollfus (1887–1976). Journal of Parasitology 63: 706 & 727. Grabda, E. 1977. Robert Ph. Dollfus (1887–1976) Wspomnienie Pośmiertne. ''Wiadomości Parazytologiczne'' 23: 463–465. Career Robert-Philippe Dollfus was born in Paris on July 20, 1887, in a family of Protestant tradition. His father was Gustave Frédéric Dollfus, famous French geologist and malacologist. Very early on, he attended the laboratories of Alfred Giard and that of Alfred Blanchard. As early as 1912, at the age of 25, he established the notion of metacercaria, a stage of the lifecycle of Digenea. In 1914, he was on an oceanographic mission aboard the Research Vessel "Pourquoi Pas?" under the orders of Jean-Baptiste Charcot. During the Second World War, he was a stretcher bearer and auxiliary doctor. Between the wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order (biology)
Order ( la, ordo) 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 follo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Class (biology)
In biological classification, class ( la, classis) is a taxonomic rank, as well as a taxonomic unit, a taxon, in that rank. It is a group of related taxonomic orders. Other well-known ranks in descending order of size are life, domain, kingdom, phylum, order, family, genus, and species, with class fitting between phylum and order. History The class as a distinct rank of biological classification having its own distinctive name (and not just called a ''top-level genus'' ''(genus summum)'') was first introduced by the French botanist Joseph Pitton de Tournefort in his classification of plants that appeared in his ''Eléments de botanique'', 1694. Insofar as a general definition of a class is available, it has historically been conceived as embracing taxa that combine a distinct ''grade'' of organization—i.e. a 'level of complexity', measured in terms of how differentiated their organ systems are into distinct regions or sub-organs—with a distinct ''type'' of construc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
