Helcogramma Maldivensis
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Helcogramma Maldivensis
''Helcogramma maldivensis'' is a species of triplefin blenny in the genus ''Helcogramma''. It was described by Ronald Fricke and John E. Randall in 1992. This species has only been recorded from the South part of the Male Atoll Male (symbol: ♂) is the sex of an organism that produces the gamete (sex cell) known as sperm, which fuses with the larger female gamete, or ovum, in the process of fertilization. A male organism cannot reproduce sexually without access to at ... in the Maldives where the only known specimens were found in a shallow lagoon with a maximum depth of and a sandy bottom. References maldivensis Endemic fauna of the Maldives Fish described in 1992 {{Tripterygiidae-stub ...
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Ronald Fricke
Ronald Fricke is a German ichthyologist and researcher of biodiversity at the State Museum of Natural History Stuttgart. As of 2022, Fricke authored 8 families, 10 genera and 186 species within the families of Callionymidae, Gobiesocidae, Ophichthidae Ophichthidae is a family of fish in the order Anguilliformes, commonly known as the snake eels. The term "Ophichthidae" comes from Greek ''ophis'' ("serpent") and ''ichthys'' ("fish"). Snake eels are also burrowing eels. They are named for thei ..., Tripterygiidae and other families. He is a co-editor of Eschmeyer's Catalog of Fishes; among his current tasks is the building of a digital ichthyological literature archive. Publications See Wikispecies below. Taxon described by him *See :Taxa named by Ronald Fricke References External links * Living people Year of birth missing (living people) Taxon authorities German ichthyologists 21st-century German zoologists Scientists from Stuttgart {{Germany-scient ...
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John Ernest Randall
John Ernest "Jack" Randall (May 22, 1924 – April 26, 2020) was an American ichthyologist and a leading authority on coral reef fishes. Randall described over 800 species and authored 11 books and over 900 scientific papers and popular articles. He spent most of his career working in Hawaii. He died in April 2020 at the age of 95. Career John Ernest Randall was born in Los Angeles, California in May 1924, to John and Mildred (McKibben) Randall. In high school he acquired a love of marine fish after a visit to the tide pools of Palos Verdes and, after serving stateside in the Medical Corps of the U.S. Army during the post- D-Day years of WWII,John Randall bio, The Academy of Underwater Arts & Sciences. (http://www.auas-nogi.org/bio_randall_john.html) received his BA degree from the University of California, Los Angeles in 1950. In 1955 he earned his Ph.D in ichthyology from the University of Hawaii. After spending two years as a research associate at the Bishop Museum in Honol ...
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Triplefin
Threefin or triplefin blennies are blenniiforms, small percomorph marine fish of the family Tripterygiidae. Found in tropical and temperate waters of the Atlantic, Pacific and Indian Oceans, the family contains about 150 species in 30 genera. The family name derives from the Greek ''tripteros'' meaning "with three wings". With an elongated, typical blenny form, threefin blennies differ from their relatives by having a dorsal fin separated into three parts (hence the name); the first two are spinous. The small, slender pelvic fins are located underneath the throat and possess a single spine; the large anal fin may have one or two spines. The pectoral fins are greatly enlarged, and the tail fin is rounded. The New Zealand topknot, ''Notoclinus fenestratus'', is the largest species at 20 cm in total length; most other species do not exceed 6 cm. Many threefin blennies are brightly coloured, often for reasons of camouflage; these species are popular in the aquarium hobby. ...
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Helcogramma
''Helcogramma'' is a genus in the triplefin family (biology), family Tripterygiidae. The blennies in the genus ''Helcogramma'' are found throughout the Indo-Pacific and in the South Atlantic Ocean off the islands of St Helena and Ascension Island, Ascension. Characteristics The fishes in the genus ''Helcogramma'' are characterised by the possession of a continuous lateral line which bends down towards the Operculum (fish), operculum, this lateral line comprises 7–39 tubular pored scales. There are three spines in the first dorsal fin and the anal fin has one spine, the pelvic fin has a single spine and two rays. The head is scaleless and normally the bases of the dorsal and anal fins have a scaleless strip. There are five bones in the joint between the caudal fin and the vertebrae, the hypurals. Species There are currently 41 recognized species in this genus: * ''Helcogramma albimacula'' Jeffrey Taylor Williams, J. T. Williams & Jeffrey C. Howe, Howe, 2003 (Whitespot triplefin) ...
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Species Description
A species description is a formal description of a newly discovered species, usually in the form of a scientific paper. Its purpose is to give a clear description of a new species of organism and explain how it differs from species that have been described previously or are related. In order for species to be validly described, they need to follow guidelines established over time. Zoological naming requires adherence to the ICZN code, plants, the ICN, viruses ICTV, and so on. The species description often contains photographs or other illustrations of type material along with a note on where they are deposited. The publication in which the species is described gives the new species a formal scientific name. Some 1.9 million species have been identified and described, out of some 8.7 million that may actually exist. Millions more have become extinct throughout the existence of life on Earth. Naming process A name of a new species becomes valid (available in zo ...
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Kaafu Atoll
Kaafu Atoll is the code name given to an administrative division in the Republic of Maldives which consists of the geographical atolls of Kaashidhoo Island, Gaafaru, North Malé Atoll and South Malé Atoll. As the two Malé Atolls are the main islands of the administrative district, the entire Kaafu Atoll administrative division is officially named Malé Atoll or Malé Atolhu in the Maldivian language, Dhivehi. The capital of the administrative division is Thulusdhoo. Although Malé, the capital of the Maldives, and the adjacent islands of Vilingili, Hulhule and Hulhumalé, are geographically part of the North Malé Atoll, they do not form part of the Kaafu Atoll administrative division and are a separate administrative division. Kaafu or Malé Atoll Kaafu is a code letter of the Thaana alphabet used in the Maldivian language, Dhivehi, assigned to one of the administrative divisions of the Maldives which is officially and traditionally known by the name Malé Atoll. The Th ...
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Endemic Fauna Of The Maldives
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example ''Cytisus aeolicus'' is an endemite of the Italian flora. ''Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies t ...
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