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Philometra Neolateolabracis
''Philometra'' is a genus of nematodes, which are parasites of marine and freshwater fishes. The genus was erected by Oronzio Gabriele Costa in 1845. Species in this genus are worldwide. They parasitize the body cavities, tissues and ovaries of both marine and freshwater fishes. When still in the larval stages, these worms move to the body cavities or subcutaneous tissues in the host. This migration can cause damage to skeletal joints, result in internal bleeding, and inflame visceral organs. Emaciation and lowered growth rates may result from this. Infestation produces nodules under the skin. When the worms are in the adult or juvenile stage, these nodules may be visible between the rays of the fins or may cause the scales to raise up. Larger nodules may be the result of gravid females which may rupture the skin surface. Once ruptured, the female disintegrates. This allows the release of the live larvae into the water. This wound on the fish then heals, leaving almost no scarrin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philometra Fasciati
''Philometra fasciati'' is a species of parasite, parasitic nematode of fishes, first found off New Caledonia in the South Pacific, in the gonads ''Epinephelus fasciatus''. This species is characterized mainly by: length of spicules and length and structure of its gubernaculum; structure of male caudal end; body size; location in host and types of hosts. References Further reading * * Camallanida Parasitic nematodes of fish Nematodes described in 2008 {{Secernentea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philometra Globiceps
''Philometra'' is a genus of nematodes, which are parasites of marine and freshwater fishes. The genus was erected by Oronzio Gabriele Costa in 1845. Species in this genus are worldwide. They parasitize the body cavities, tissues and ovaries of both marine and freshwater fishes. When still in the larval stages, these worms move to the body cavities or subcutaneous tissues in the host. This migration can cause damage to skeletal joints, result in internal bleeding, and inflame visceral organs. Emaciation and lowered growth rates may result from this. Infestation produces nodules under the skin. When the worms are in the adult or juvenile stage, these nodules may be visible between the rays of the fins or may cause the scales to raise up. Larger nodules may be the result of gravid females which may rupture the skin surface. Once ruptured, the female disintegrates. This allows the release of the live larvae into the water. This wound on the fish then heals, leaving almost no scarrin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karl Rudolphi
Karl Asmund Rudolphi (14 July 1771 – 29 November 1832) was a Swedish-born German naturalist, who is credited with being the "father of helminthology". Life Rudolphi was born in Stockholm to German parents. He was awarded his PhD in 1793 and his medical doctorate in 1794 from the University of Greifswald, where he was appointed Professor of Anatomy. He worked widely across the fields of botany, zoology, anatomy and physiology. He investigated the anatomy of nerves, carried out studies of plant growth and was an early champion of the view that the cell is the basic structural unit of plants. In 1804, Karl Rudolphi, along with J.H.F. Link were awarded the prize for "solving the problem of the nature of cells" by the Königliche Societät der Wissenschaft (Royal Society of Science), Göttingen, for proving that cells had independent rather than common walls. His first great publication was a study of parasitic worms, the ''Enterozoorum Sive Vermium Intestinalium Histor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philometra Sanguinea
''Philometra'' is a genus of nematodes, which are parasites of marine and freshwater fishes. The genus was erected by Oronzio Gabriele Costa in 1845. Species in this genus are worldwide. They parasitize the body cavities, tissues and ovaries of both marine and freshwater fishes. When still in the larval stages, these worms move to the body cavities or subcutaneous tissues in the host. This migration can cause damage to skeletal joints, result in internal bleeding, and inflame visceral organs. Emaciation and lowered growth rates may result from this. Infestation produces nodules under the skin. When the worms are in the adult or juvenile stage, these nodules may be visible between the rays of the fins or may cause the scales to raise up. Larger nodules may be the result of gravid females which may rupture the skin surface. Once ruptured, the female disintegrates. This allows the release of the live larvae into the water. This wound on the fish then heals, leaving almost no scarrin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Leidy
Joseph Mellick Leidy (September 9, 1823 – April 30, 1891) was an American paleontologist, parasitologist and anatomist. Leidy was professor of anatomy at the University of Pennsylvania, later becoming a professor of natural history at Swarthmore College and the director of scientific and educational programs at the Wagner Free Institute of Science. His book ''Extinct Fauna of Dakota and Nebraska'' (1869) contained many species not previously described and many previously unknown on the North American continent. At the time, scientific investigation was largely the province of wealthy amateurs. The Leidy Glacier in northwest Greenland was named by Robert Peary after him. Early life and family Joseph Leidy was born on September 9, 1823, to an established Philadelphia family of Pennsylvania Germans. His father, Philip, was a hatter; his mother, Catharine, died during childbirth when he was young. His father then married his wife's first cousin, Christiana Mellick. Leidy al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philometra Rubra
''Philometra'' is a genus of nematodes, which are parasites of marine and freshwater fishes. The genus was erected by Oronzio Gabriele Costa in 1845. Species in this genus are worldwide. They parasitize the body cavities, tissues and ovaries of both marine and freshwater fishes. When still in the larval stages, these worms move to the body cavities or subcutaneous tissues in the host. This migration can cause damage to skeletal joints, result in internal bleeding, and inflame visceral organs. Emaciation and lowered growth rates may result from this. Infestation produces nodules under the skin. When the worms are in the adult or juvenile stage, these nodules may be visible between the rays of the fins or may cause the scales to raise up. Larger nodules may be the result of gravid females which may rupture the skin surface. Once ruptured, the female disintegrates. This allows the release of the live larvae into the water. This wound on the fish then heals, leaving almost no scarrin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philometra Priacanthi
''Philometra priacanthi'' is a species of parasite, parasitic nematode of fishes. Its name is derived from its host (biology), host species, ''Priacanthus hamrur''. It possesses dorsal lamella (anatomy), lamella-like structures on the distal part of its Gubernaculum (nematode anatomy), gubernaculum, which can also be found on other of its cogenerates. The only species with a dorsal protuberance near the gubernaculum's end is ''P. priacanthi'', however. ''Philometra lateolabracis, P. lateolabracis'' can be distinguished from the former by the lateral caudal mounds separated dorsally, narrower lamella-like structures on its gubernaculum, shorter spicule (nematode), spicules, and by the testis extending anteriorly. Other gonad-infecting species differ from this one by possessing a smooth gubernaculum, and their spicules being of different lengths. Seven gonad-infecting species of ''Philometra'' can be distinguished from ''P. priacanthi'' by their host types, as well as by geographical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philometra Ovata
''Philometra'' is a genus of nematodes, which are parasites of marine and freshwater fishes. The genus was erected by Oronzio Gabriele Costa in 1845. Species in this genus are worldwide. They parasitize the body cavities, tissues and ovaries of both marine and freshwater fishes. When still in the larval stages, these worms move to the body cavities or subcutaneous tissues in the host. This migration can cause damage to skeletal joints, result in internal bleeding, and inflame visceral organs. Emaciation and lowered growth rates may result from this. Infestation produces nodules under the skin. When the worms are in the adult or juvenile stage, these nodules may be visible between the rays of the fins or may cause the scales to raise up. Larger nodules may be the result of gravid females which may rupture the skin surface. Once ruptured, the female disintegrates. This allows the release of the live larvae into the water. This wound on the fish then heals, leaving almost no scarrin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philometra Otolithi
''Philometra otolithi'' is a species of parasitic nematode of fishes, infecting the gonads of marine perciform fishes off the eastern Indian coast. It was first found in the tigertooth croaker, '' Otolithes ruber''. It is distinguished from its cogenerates by the gubernaculum structure in males, as well as the shape and structure of the females' cephalic and caudal ends, and their oesophagus The esophagus (American English), oesophagus (British English), or œsophagus ( archaic spelling) ( see spelling difference) all ; : ((o)e)(œ)sophagi or ((o)e)(œ)sophaguses), colloquially known also as the food pipe, food tube, or gullet, ....Moravec, Frantisek, and Jayaraman Manoharan. "Gonad-infecting philometrids (Nematoda: Philometridae) including four new species from marine fishes off the eastern coast of India." Folia Parasitologica 60.2 (2013): 105. References Further reading *Moravec, František, Maryam Khosheghbal, and Jamileh Pazooki. "Dichelyne (Dichelyne) spinigerus s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
