|
Dactylagnus
''Dactylagnus'' is a genus of sand stargazers, found in the eastern central Pacific and western central Atlantic Ocean The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe .... Species There are currently three recognized species in this genus: * '' Dactylagnus mundus'' T. N. Gill, 1863 (Giant sand stargazer) * '' Dactylagnus parvus'' C. E. Dawson, 1976 (Panamic stargazer) * '' Dactylagnus peratikos'' J. E. Böhlke & D. K. Caldwell, 1961 References Dactyloscopidae Marine fish genera Taxa named by Theodore Gill {{blenniiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dactylagnus
''Dactylagnus'' is a genus of sand stargazers, found in the eastern central Pacific and western central Atlantic Ocean The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe .... Species There are currently three recognized species in this genus: * '' Dactylagnus mundus'' T. N. Gill, 1863 (Giant sand stargazer) * '' Dactylagnus parvus'' C. E. Dawson, 1976 (Panamic stargazer) * '' Dactylagnus peratikos'' J. E. Böhlke & D. K. Caldwell, 1961 References Dactyloscopidae Marine fish genera Taxa named by Theodore Gill {{blenniiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dactylagnus Mundus
''Dactylagnus mundus'', the giant sand stargazer, is a species of sand stargazer found in the Gulf of California and along the Pacific coast of North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ... from Baja California to Panama as well as around the Galapagos Islands. It prefers sandy beaches down to a depth of about and occasionally down to . It can reach a maximum length of SL. This species is of minor importance to local commercial fisheries. References External links Photograph mundus Fish described in 1863 {{Blenniiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dactylagnus Parvus
''Dactylagnus parvus'', the Panamic stargazer, is a species of sand stargazer found along the Pacific coast of southern Baja California to Panama where it can be found down to a depth of about . It can reach a maximum length of SL. References parvus Alexander Lvovich Parvus, born Israel Lazarevich Gelfand (8 September 1867 – 12 December 1924) and sometimes called Helphand in the literature on the Russian Revolution, was a Marxist theoretician, publicist, and controversial activist in the ... Fish described in 1976 Taxa named by Charles Eric Dawson {{Blenniiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dactylagnus Peratikos
''Dactylagnus peratikos'' is a species of sand stargazer found along the Atlantic coast of Costa Rica Costa Rica (, ; ; literally "Rich Coast"), officially the Republic of Costa Rica ( es, República de Costa Rica), is a country in the Central American region of North America, bordered by Nicaragua to the north, the Caribbean Sea to the no ... and Panama. It can reach a maximum length of SL. References peratikos Taxa named by James Erwin Böhlke Fish described in 1961 {{Blenniiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sand Stargazers
Sand stargazers are blennioids; perciform marine fish of the family Dactyloscopidae. Found in temperate to tropical waters of North and South America; some may also inhabit brackish environments. The giant sand stargazer (''Dactylagnus mundus'') is the largest at 15 cm in length; all other species are under 10 cm. These blennies are named well: sand stargazers have protruding eyes on the top of their heads, fixed in an upward gaze, and may be on stalks. Their large mouths are also upturned. The dorsal fin is long and may or may not be continuous, with seven to 23 spines; the pelvic fins are situated below the throat and possess one spine. The anal fin is equally long and flowing. The mouth is fringed, and like the upper edge of the operculum (the gill cover), this fringe is divided into finger-like structures. The body is greatly elongated, and coloration is generally drab. As their name would suggest, sand stargazers spend most of their time buried in sandy substrat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dactyloscopidae
Sand stargazers are blennioids; perciform marine fish of the family Dactyloscopidae. Found in temperate to tropical waters of North and South America; some may also inhabit brackish environments. The giant sand stargazer (''Dactylagnus mundus'') is the largest at 15 cm in length; all other species are under 10 cm. These blennies are named well: sand stargazers have protruding eyes on the top of their heads, fixed in an upward gaze, and may be on stalks. Their large mouths are also upturned. The dorsal fin is long and may or may not be continuous, with seven to 23 spines; the pelvic fins are situated below the throat and possess one spine. The anal fin is equally long and flowing. The mouth is fringed, and like the upper edge of the operculum (the gill cover), this fringe is divided into finger-like structures. The body is greatly elongated, and coloration is generally drab. As their name would suggest, sand stargazers spend most of their time buried in sandy substrat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodore Nicholas Gill
Theodore Nicholas Gill (March 21, 1837 – September 25, 1914) was an American ichthyologist, mammalogist, malacologist and librarian. Career Born and educated in New York City under private tutors, Gill early showed interest in natural history. He was associated with J. Carson Brevoort in the arrangement of the latter's entomological and ichthyological collections before going to Washington D.C. in 1863 to work at the Smithsonian Institution. He catalogued mammals, fishes and mollusks most particularly although maintaining proficiency in other orders of animals. He was librarian at the Smithsonian and also senior assistant to the Library of Congress. He was elected as a member of the American Philosophical Society in 1867. Gill was professor of zoology at George Washington University. He was also a member of the Megatherium Club at the Smithsonian Institution in Washington, D.C. Fellow members frequently mocked him for his vanity. He was president of the American Association f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continents of Asia and Oceania in the west and the Americas in the east. At in area (as defined with a southern Antarctic border), this largest division of the World Ocean—and, in turn, the hydrosphere—covers about 46% of Earth's water surface and about 32% of its total surface area, larger than Earth's entire land area combined .Pacific Ocean . '' Britannica Concise.'' 2008: Encyclopædia Britannica, Inc. The centers of both the |
Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe and Asia from the "New World" of the Americas in the European perception of the World. The Atlantic Ocean occupies an elongated, S-shaped basin extending longitudinally between Europe and Africa to the east, and North and South America to the west. As one component of the interconnected World Ocean, it is connected in the north to the Arctic Ocean, to the Pacific Ocean in the southwest, the Indian Ocean in the southeast, and the Southern Ocean in the south (other definitions describe the Atlantic as extending southward to Antarctica). The Atlantic Ocean is divided in two parts, by the Equatorial Counter Current, with the North(ern) Atlantic Ocean and the South(ern) Atlantic Ocean split at about 8°N. Scientific explorations of the A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Eric Dawson
Charles Eric "Chuck" Dawson (December 6, 1922 – February 11, 1993) was a Canadian-American ecologist Ecology () is the study of the relationships between living organisms, including humans, and their physical environment. Ecology considers organisms at the individual, population, community, ecosystem, and biosphere level. Ecology overlaps wi ..., ichthyology, ichthyologist, and taxonomy (biology), taxonomist. He held expertise in goby, gobies, flatfishes, and sand stargazers, and was considered "the ultimate authority" on pipefishes in the family Syngnathidae. Life Dawson was born in Vancouver, British Columbia, Canada, but would eventually spend much of his career at the University of Southern Mississippi's Gulf Coast Research Laboratory in Ocean Springs, Mississippi, where he worked early as an administrator, then researcher, and museum curator. Over his long career Dawson wrote 150 publications, on the majority of which he was the sole author. He recognized 52 Syngnat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Erwin Böhlke
James Erwin Böhlke (1930–1982) was an American ichthyologist. From 1954 to 1982, he was curator of the Department of Ichthyology at the Academy of Natural Sciences of Philadelphia (today the Academy of Natural Sciences of Drexel University). He published over 120 papers on diverse groups of fishes and topics, primarily in his areas of expertise, fishes of the Bahamas, Caribbean, and South America. His wife Eugenia (Genie) Brandt Böhlke (1928–2001) was also a noted ichthyologist. The serranid fish genus ''Jeboehlkia ''Jeboehlkia'' is a monotypic genus of marine ray-finned fish, related to the groupers and classified within the subfamily Epinephelinae of the family Serranidae. It is a species of relatively deep water which is found in the western Atlantic Oc ...'' is named in his honour, See also * :Taxa named by James Erwin Böhlke References {{DEFAULTSORT:Bohlke, James Erwin 1930 births 1982 deaths American ichthyologists 20th-century American zoologists ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Pacific Ocean")
