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Congrogadus
''Congrogadus'' is a genus of ray-finned fishes, the type genus of the subfamily Congrogadinae, the eel blennies, part of the dottyback Family (biology), family, Pseudochromidae. The genus ''Congrogadus'' has an Indo-Pacific distribution. Characteristics The species in the genus ''Congrogadus'' differ from their other genera in the subfamily Congogadinae in that they do not have a spot on their shoulder, a similar spot beingloacted on the Operculum (fish), operculum. Their dorsal fin, dorsal and anal fins have a higher number of rays than all the other species in the subfamily except for the species in the genus ''Halidesmus'' which can have up to 90 fin rays. Also compared to the related genera which may have three complete lateral lines, the species in ''Congrogadus'' have only have a single curtailed lateral line. In addition some species which are classified in the subgenus ''Congrogadoides'' have the gill membranes fused to the isthmus. The gill membranes of the subgenus ''Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Congrogadus Hierichthys
''Congrogadus'' is a genus of ray-finned fishes, the type genus of the subfamily Congrogadinae, the eel blennies, part of the dottyback family, Pseudochromidae. The genus ''Congrogadus'' has an Indo-Pacific distribution. Characteristics The species in the genus ''Congrogadus'' differ from their other genera in the subfamily Congogadinae in that they do not have a spot on their shoulder, a similar spot beingloacted on the operculum. Their dorsal and anal fins have a higher number of rays than all the other species in the subfamily except for the species in the genus ''Halidesmus'' which can have up to 90 fin rays. Also compared to the related genera which may have three complete lateral lines, the species in ''Congrogadus'' have only have a single curtailed lateral line. In addition some species which are classified in the subgenus ''Congrogadoides'' have the gill membranes fused to the isthmus. The gill membranes of the subgenus ''Congrogadus'' are not fused while the species i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Congrogadus Spinifer
''Congrogadus'' is a genus of ray-finned fishes, the type genus of the subfamily Congrogadinae, the eel blennies, part of the dottyback family, Pseudochromidae. The genus ''Congrogadus'' has an Indo-Pacific distribution. Characteristics The species in the genus ''Congrogadus'' differ from their other genera in the subfamily Congogadinae in that they do not have a spot on their shoulder, a similar spot beingloacted on the operculum. Their dorsal and anal fins have a higher number of rays than all the other species in the subfamily except for the species in the genus ''Halidesmus'' which can have up to 90 fin rays. Also compared to the related genera which may have three complete lateral lines, the species in ''Congrogadus'' have only have a single curtailed lateral line. In addition some species which are classified in the subgenus ''Congrogadoides'' have the gill membranes fused to the isthmus. The gill membranes of the subgenus ''Congrogadus'' are not fused while the species i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Congrogadus Malayanus
''Congrogadus'' is a genus of ray-finned fishes, the type genus of the subfamily Congrogadinae, the eel blennies, part of the dottyback family, Pseudochromidae. The genus ''Congrogadus'' has an Indo-Pacific distribution. Characteristics The species in the genus ''Congrogadus'' differ from their other genera in the subfamily Congogadinae in that they do not have a spot on their shoulder, a similar spot beingloacted on the operculum. Their dorsal and anal fins have a higher number of rays than all the other species in the subfamily except for the species in the genus ''Halidesmus'' which can have up to 90 fin rays. Also compared to the related genera which may have three complete lateral lines, the species in ''Congrogadus'' have only have a single curtailed lateral line. In addition some species which are classified in the subgenus ''Congrogadoides'' have the gill membranes fused to the isthmus. The gill membranes of the subgenus ''Congrogadus'' are not fused while the species i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Congrogadus Amplimaculatus
''Congrogadus'' is a genus of ray-finned fishes, the type genus of the subfamily Congrogadinae, the eel blennies, part of the dottyback family, Pseudochromidae. The genus ''Congrogadus'' has an Indo-Pacific distribution. Characteristics The species in the genus ''Congrogadus'' differ from their other genera in the subfamily Congogadinae in that they do not have a spot on their shoulder, a similar spot beingloacted on the operculum. Their dorsal and anal fins have a higher number of rays than all the other species in the subfamily except for the species in the genus ''Halidesmus'' which can have up to 90 fin rays. Also compared to the related genera which may have three complete lateral lines, the species in ''Congrogadus'' have only have a single curtailed lateral line. In addition some species which are classified in the subgenus ''Congrogadoides'' have the gill membranes fused to the isthmus. The gill membranes of the subgenus ''Congrogadus'' are not fused while the species i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Congrogadinae
Congrogadinae is a subfamily of ray-finned fishes, one of four subfamilies that make up the family Pseudochromidae, these elongated fish are commonly called eel-blennies. Characteristics The species in the subfamily Congrogadidae have elongated rather eel-like bodies which are covered in with small cycloid scales. Their dorsal fin normally has a single robust spine and 32–79 rays while the anal fin lacks any spines and has 26–66 rays. The dorsal and anal fins are long and the pelvic fin is sometimes present but in more than half the species it is absent. The caudal fin is joined to the long dorsal and anal fins in a small number of species but is separated in all the others. They have a protractable mouth and there is a rear facing spine on the opercle. They have between one and three complete or partial lateral lines. There are no teeth on the palatine and they may or may not be present on the vomerine bone. They grow to a maximum length of . They lay eggs which are co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dottyback
The dottybacks are a family, Pseudochromidae, of fishes which were formerly classified in the order Perciformes, but this has been revised and the family is regarded as of uncertain affinities, or ''incertae sedis'' within the Ovalentaria, a clade within the Percomorpha. Around 152 species belong to this family. They are found in the tropical and subtropical Indo-Pacific, where most inhabit coral reefs. Many species are brightly coloured fish, often showing striking sexual dimorphism. They are generally small, mostly less than in length, and some less than . The largest by far, at up to , is '' Congrogadus subducens''.Lieske, E., and Myers, R. (1999). Coral Reef Fishes. 2nd edition. Princeton University Press. Dottybacks are distinguished from other families by the presence of three or less spines in the dorsal fin and an incomplete lateral line organ. Several of the brightly coloured members of the family are often seen in the marine aquarium trade, although some species a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert Günther
Albert Karl Ludwig Gotthilf Günther FRS, also Albert Charles Lewis Gotthilf Günther (3 October 1830 – 1 February 1914), was a German-born British zoologist, ichthyologist, and herpetologist. Günther is ranked the second-most productive reptile taxonomist (after George Albert Boulenger) with more than 340 reptile species described. Early life and career Günther was born in Esslingen in Swabia (Württemberg). His father was a ''Stiftungs-Commissar'' in Esslingen and his mother was Eleonora Nagel. He initially schooled at the Stuttgart Gymnasium. His family wished him to train for the ministry of the Lutheran Church for which he moved to the University of Tübingen. A brother shifted from theology to medicine, and he, too, turned to science and medicine at Tübingen in 1852. His first work was "''Ueber den Puppenzustand eines Distoma''". He graduated in medicine with an M.D. from Tübingen in 1858, the same year in which he published a handbook of zoology for students of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anal Fin
Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as seen in sharks. Apart from the tail or caudal fin, fish fins have no direct connection with the spine and are supported only by muscles. Their principal function is to help the fish swim. Fins located in different places on the fish serve different purposes such as moving forward, turning, keeping an upright position or stopping. Most fish use fins when swimming, flying fish use pectoral fins for gliding, and frogfish use them for crawling. Fins can also be used for other purposes; male sharks and mosquitofish use a modified fin to deliver sperm, thresher sharks use their caudal fin to stun prey, reef stonefish have spines in their dorsal fins that inject venom, anglerfish use the first spine of their dorsal fin like a fishing rod to lu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Max Carl Wilhelm Weber
Max Carl Wilhelm Weber van Bosse or Max Wilhelm Carl Weber (5 December 1852, in Bonn – 7 February 1937, in Eerbeek) was a German-Dutch zoologist and biogeographer. Weber studied at the University of Bonn, then at the Humboldt University in Berlin with the zoologist Eduard Carl von Martens (1831–1904). He obtained his doctorate in 1877. Weber taught at the University of Utrecht then participated in an expedition to the Barents Sea. He became Professor of Zoology, Anatomy and Physiology at the University of Amsterdam in 1883. In the same year he received naturalised Dutch citizenship. His discoveries as leader of the Siboga Expedition led him to propose Weber's line, which encloses the region in which the mammalian fauna is exclusively Australasian, as an alternative to Wallace's Line. As is the case with plant species, faunal surveys revealed that for most vertebrate groups Wallace’s line was not the most significant biogeographic boundary. The Tanimbar Island group, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Winterbottom (ichthyologist)
Richard Emanuel Winterbottom (22 July 1899 – 9 February 1968) was a British Labour Party politician. Born in Oldham, Lancashire, Winterbottom served in the Royal Navy during World War I. He became an area organiser for a predecessor of the Union of Shop, Distributive and Allied Workers in 1931, then the national organiser in 1944. In 1950, he was elected as the Member of Parliament (MP) for Sheffield Brightside, serving for his first year as Parliamentary Private Secretary to Ness Edwards Ness Edwards (5 April 1897 – 3 May 1968) was a trade unionist and Welsh Labour Party politician: he served as Member of Parliament (MP) for Caerphilly from July 1939 until his death. He was born in Abertillery, Monmouthshire, Wales, the se .... Winterbottom remained in Parliament until his death in 1968. References *M. Stenton and S. Lees, ''Who's Who of British Members of Parliament, Volume IV 1945-1979'' * External links * 1899 births 1968 deaths Labour Party ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malay Archipelago
The Malay Archipelago (Indonesian/Malay: , tgl, Kapuluang Malay) is the archipelago between mainland Indochina and Australia. It has also been called the " Malay world," "Nusantara", "East Indies", Indo-Australian Archipelago, Spices Archipelago and other names over time. The name was taken from the 19th-century European concept of a Malay race, later based on the distribution of Austronesian languages. Situated between the Indian and Pacific Oceans, the archipelago of over 25,000 islands and islets is the largest archipelago by area and fourth by number of islands in the world. It includes Brunei, East Timor, Indonesia, Malaysia (East Malaysia), Papua New Guinea, the Philippines and Singapore.''Encyclopædia Britannica''. 2006. Chicago: Encyclopædia Britannica, Inc. The term is largely synonymous with Maritime Southeast Asia. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gonads
A gonad, sex gland, or reproductive gland is a mixed gland that produces the gametes and sex hormones of an organism. Female reproductive cells are egg cells, and male reproductive cells are sperm. The male gonad, the testicle, produces sperm in the form of spermatozoa. The female gonad, the ovary, produces egg cells. Both of these gametes are haploid cells. Some hermaphroditic animals have a type of gonad called an ovotestis. Evolution It is hard to find a common origin for gonads, but gonads most likely evolved independently several times. Regulation The gonads are controlled by luteinizing hormone and follicle-stimulating hormone, produced and secreted by gonadotropes or gonadotrophins in the anterior pituitary gland. This secretion is regulated by gonadotropin-releasing hormone produced in the hypothalamus. Development Gonads start developing as a common primordium (an organ in the earliest stage of development), in the form of genital ridges, which are only late ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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