Achtheres Percarum

	Achtheres Percarum ''Achtheres percarum'' is a species of arthropod Arthropods ( ) are invertebrates in the phylum Arthropoda. They possess an arthropod exoskeleton, exoskeleton with a cuticle made of chitin, often Mineralization (biology), mineralised with calcium carbonate, a body with differentiated (Metam ... belonging to the family Lernaeopodidae. Synonym: * ''Achtheres sibirica'' Messjatzeff, 1928 References Siphonostomatoida Crustaceans described in 1832 {{copepod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Alexander Von Nordmann Alexander von Nordmann (24 May 1803 in Ruotsinsalmi, Vyborg Governorate – 25 June 1866 in Helsinki, Grand Duchy of Finland) was a Finnish biologist, who contributed to zoology, parasitology, botany and paleontology.Leikola A (2001Nordmann, Alexander von (1803 - 1866) - eläintieteen professori, todellinen valtioneuvosKansallisbiografia. SKS Biografiakeskus Biography Nordmann was a son of an officer of the Russian army at the Ruotsinsalmi fortress, Old Finland. He started academic studies at the Imperial Academy of Turku, and at that time also acted as a curator of the entomological collections. In 1827 he continued studies in Berlin with the famous parasitologist and anatomist Karl Rudolphi. His first major work was a microscopical description of tens of parasitic worms and crustaceans from the eyes and other organs of fishes and other animals, including man. These included the enigmatic monogenean '' Diplozoon paradoxum''. In 1832 he was appointed a professor (teacher) a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Arthropod Arthropods ( ) are invertebrates in the phylum Arthropoda. They possess an arthropod exoskeleton, exoskeleton with a cuticle made of chitin, often Mineralization (biology), mineralised with calcium carbonate, a body with differentiated (Metamerism (biology), metameric) Segmentation (biology), segments, and paired jointed appendages. In order to keep growing, they must go through stages of moulting, a process by which they shed their exoskeleton to reveal a new one. They form an extremely diverse group of up to ten million species. Haemolymph is the analogue of blood for most arthropods. An arthropod has an open circulatory system, with a body cavity called a haemocoel through which haemolymph circulates to the interior Organ (anatomy), organs. Like their exteriors, the internal organs of arthropods are generally built of repeated segments. They have ladder-like nervous systems, with paired Anatomical terms of location#Dorsal and ventral, ventral Ventral nerve cord, nerve cord ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Lernaeopodidae Lernaeopodidae is a family of parasitic copepods. The females are typically large and fleshy, and attach to the host permanently using a plug made of chitin called the ''bulla''. The males cling on to the females using their antennae. They parasitize both marine and freshwater fish. Some lernaeopodids, including '' Clavella'' and '' Salmincola'', can have negative impacts on fish in aquaculture. Genera The family contains the following genera: * '' Acespadia'' Leigh-Sharpe, 1933 * ''Achtheres'' Nordmann, 1832 * ''Alella'' Leigh-Sharpe, 1925 * '' Anaclavella'' Heegaard, 1940 * '' Basanistes'' Nordmann, 1832 * '' Brachiella'' Cuvier, 1830 * '' Brianella'' Wilson C.B., 1915 * '' Brianellinae'' Wilson C.B., 1915 * '' Cauloxenus'' Cope, 1872 * '' Charopinus'' Krøyer, 1863 * '' Clavella'' Oken, 1815 * '' Clavellinae'' Wilson C.B., 1915 * '' Clavellisa'' Wilson C.B., 1915 * '' Clavellistes'' Shiino, 1963 * '' Clavellodes'' Wilson C.B., 1915 * '' Clavellomimus'' Kabata, 1969 * '' Clave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Siphonostomatoida Siphonostomatoida is an order (biology), order of copepods, containing around 75% of all the copepods that parasitise fishes. Their success has been linked to their possession of siphon-like mandibles and of a "frontal filament" to aid attachment to their hosts. Most are marine, but a few live in fresh water. There are 40 recognised families: Archidactylinidae Izawa, 1996 Artotrogidae Brady, 1880 Asterocheridae Giesbrecht, 1899 Brychiopontiidae Humes, 1974 Caligidae Burmeister, 1835 Calverocheridae Stock, 1968 Cancerillidae Giesbrecht, 1897 Codobidae Boxshall & Ohtsuka, 2001 Coralliomyzontidae Humes & Stock, 1991 Dichelesthiidae Milne-Edwards, 1840 Dichelinidae Boxshall & Ohtsuka, 2001 Dinopontiidae Murnane, 1967 Dirivultidae Humes & Dojiri, 1980 Dissonidae Satyu Yamaguti, Yamaguti, 1963 Ecbathyriontidae Humes, 1987 Entomolepididae Brady, 1899 Eudactylinidae C. B. Wilson, 1932 Hatschekiidae Kabata, 1979 Hyponeoidae Heegaard, 1962 Kroyeriidae Kabata, 1979 Lerna ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]