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Blepsias
''Blepsias'' is a genus of marine ray-finned fishes belonging to the family Agonidae, the poachers and related fishes. These fishes are found in the coastal northern Pacific Ocean from Japan to California. Taxonomy ''Blepsias'' was first proposed as a genus by the French zoologist Georges Cuvier with ''Trachinus cirrhosus'', which had originally been described in 1814 by Peter Simon Pallas from Kamchatka, as the type species. The genus is included in the subfamily Hemitripterinae of the family Agonidae. Cuvier used a Greek name for a fish, as was his habit, for the name of the new genus. Species The recognized species in this genus are: * '' Blepsias bilobus'' G. Cuvier, 1829 (crested sculpin) * '' Blepsias cirrhosus'' (Pallas, 1814) (silverspotted sculpin) Characteristics ''Blepsias'' has a spiny preoperculum, a compressed head, with armoured cheeks and palatine teeth. The large pectoral fins have the lower rays separate from the fin membrane. There are fleshy flaps which han ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blepsias Cirrhosus
''Blepsias cirrhosus'', the silverspotted sculpin, is a species of sculpin belonging to the subfamily Hemitripterinae of the family Agonidae. This species is found the northern Pacific Ocean from the Sea of Japan and Alaska to San Miguel Island off southern California. Taxonomy ''Blepsias cirrhosus'' was first formally described as ''Trachinus cirrhosus'' by the German naturalist Peter Simon Pallas with they type locality given as "America; port of Avacha, southeastern Kamchatka; Penzhinskaya Bay, Okhotsk Sea". In 1829 Georges Cuvier proposed the monospecific genus ''Blepsias'' for ''T. cirrhosus'' so it is the type species of that genus. The specific name ''cirrhosus'' means "curled" or "bearing tendrils", an allusion to the elongated, whiskery barbels on the snout and chin. Description ''Blepsias cirrhosus'' has a deep, compressed body which is covered in papillae which enclose a small spine that is embedded in a bony plate in the skin. There are cirrhi on the chin. The fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blepsias
''Blepsias'' is a genus of marine ray-finned fishes belonging to the family Agonidae, the poachers and related fishes. These fishes are found in the coastal northern Pacific Ocean from Japan to California. Taxonomy ''Blepsias'' was first proposed as a genus by the French zoologist Georges Cuvier with ''Trachinus cirrhosus'', which had originally been described in 1814 by Peter Simon Pallas from Kamchatka, as the type species. The genus is included in the subfamily Hemitripterinae of the family Agonidae. Cuvier used a Greek name for a fish, as was his habit, for the name of the new genus. Species The recognized species in this genus are: * '' Blepsias bilobus'' G. Cuvier, 1829 (crested sculpin) * '' Blepsias cirrhosus'' (Pallas, 1814) (silverspotted sculpin) Characteristics ''Blepsias'' has a spiny preoperculum, a compressed head, with armoured cheeks and palatine teeth. The large pectoral fins have the lower rays separate from the fin membrane. There are fleshy flaps which han ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blepsias Bilobus
''Blepsias bilobus'', the crested sculpin, is a species of sculpin belonging to the subfamily Hemitripterinae of the family Agonidae. This species is found in the North Pacific Ocean. Taxonomy ''Blepsias bilobus'' was first formally described in 1829 by the French zoologist Georges Cuvier with the type locality given as Kamchatka. This sculpin is classified in the subfamily Hemitripterinae of the family Agonidae. The specific name ''bilobus'' means "two lobed", an allusion to the deeply incised dorsal fin giving the impression of two lobes, Cuvier mistakenly thought that ''Blepsias cirrhosus'' had three lobes and gave it the name ''Blepsias trilobus''. Description ''Blepsias bilobus'' has a deep, compressed body which is covered in papillae which enclose a small spine that is embedded in a bony plate in the skin. There are cirrhi on the chin. The first dorsal fin is smoothly rounded and is not notched. The second dorsal fin and the anal fin are large and are located opposite e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemitripterinae
The Hemitripterinae is a subfamily of the scorpaeniform family Agonidae, known as sea ravens or sailfin sculpins. They are bottom-dwelling fish that feed on small invertebrates, found in the northwest Atlantic and north Pacific Oceans. They are covered in small spines (modified scales). Taxonomy The sea raven subfamily Hemitripterinae, was first proposed as a taxonomic grouping in 1872 by the American biologist Theodore Gill. It has been treated as a family, the Hemitripteridae, within the Cottoidea superfamily but phylogentic analyses in the 21st Century place the grouping within the family Agonidae. Genera The following three genera are classified within the subfamily Hemitripterinae: Characteristics Hemitripterinae species are called sea ravens because early zoologists posited that their large pectoral fins may be used to fly in the air. Another name is sailfin sculpins, referring to their tall dorsal fins, in particular the very tall first dorsal fin of '' Nautichthys o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agonidae
Agonidae is a family of small, bottom-dwelling, cold-water marine fish. Common names for members of this family include poachers, Irish lords, sea ravens, alligatorfishes, starsnouts, hooknoses, and rockheads. They are notable for having elongated bodies covered by scales modified into bony plates, and for using their large pectoral fins to move in short bursts. The family includes about 59 species in some 25 genera, some of which are quite widespread. The pelvic fins are nearly vestigial, typically consisting of one small spine and a few rays. The swim bladder is not present. At in length, the dragon poacher (''Percis japonica'') is the largest member of the family, while '' Bothragonus occidentalis'' is long as an adult; most are in the 20–30 cm range. Agonidae species generally feed on small crustaceans and marine worms found on the bottom. Some species camouflage Camouflage is the use of any combination of materials, coloration, or illumination for conce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subfamily
In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end botanical subfamily names with "-oideae", and zoological subfamily names with "-inae". Detarioideae is an example of a botanical subfamily. Detarioideae is a subdivision of the family Fabaceae (legumes), containing 84 genera. Stevardiinae is an example of a zoological subfamily. Stevardiinae is a large subdivision of the family Characidae, a diverse clade In biology, a clade (), also known as a Monophyly, monophyletic group or natural group, is a group of organisms that is composed of a common ancestor and all of its descendants. Clades are the fundamental unit of cladistics, a modern approach t ... of freshwater fish. See also * International Code of Nomenclature for algae, fungi, and plants * International Code of Zoological Nomenclature * Rank (botany) * Rank (zoolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bering Sea
The Bering Sea ( , ; rus, Бе́рингово мо́ре, r=Béringovo móre, p=ˈbʲerʲɪnɡəvə ˈmorʲe) is a marginal sea of the Northern Pacific Ocean. It forms, along with the Bering Strait, the divide between the two largest landmasses on Earth: Eurasia and the Americas. It comprises a deep water basin, which then rises through a narrow slope into the shallower water above the continental shelf, continental shelves. The Bering Sea is named after Vitus Bering, a Denmark, Danish-born Russia, Russian navigator, who, in 1728, was the first European to systematically explore it, sailing from the Pacific Ocean northward to the Arctic Ocean. The Bering Sea is separated from the Gulf of Alaska by the Alaska Peninsula. It covers over and is bordered on the east and northeast by Alaska, on the west by the Russian Far East and the Kamchatka Peninsula, on the south by the Alaska Peninsula and the Aleutian Islands and on the far north by the Bering Strait, which connects the Berin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chukchi Sea
The Chukchi Sea (, ), sometimes referred to as the Chuuk Sea, Chukotsk Sea or the Sea of Chukotsk, is a marginal sea of the Arctic Ocean. It is bounded on the west by the Long Strait, off Wrangel Island, and in the east by Point Barrow, Alaska, beyond which lies the Beaufort Sea. The Bering Strait forms its southernmost limit and connects it to the Bering Sea and the Pacific Ocean. The principal port on the Chukchi Sea is Uelen in Russia. The International Date Line crosses the Chukchi Sea from northwest to southeast. It is displaced eastwards to avoid Wrangel Island as well as the Chukotka Autonomous Okrug on the Russian mainland. Etymology In 1928, during hydrographic observations, the Norwegian polar explorer Harald Sverdrup discovered that the sea lying between Point Barrow and Wrangel Island was very different from the sea between the New Siberian Islands and Wrangel Island and therefore should be separated from the East Siberian Sea. It was decided to call the newly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Of Okhotsk
The Sea of Okhotsk; Historically also known as , or as ; ) is a marginal sea of the western Pacific Ocean. It is located between Russia's Kamchatka Peninsula on the east, the Kuril Islands on the southeast, Japan's island of Hokkaido on the south, the island of Sakhalin along the west, and a stretch of eastern Siberian coast along the west and north. Its northeast corner is the Shelikhov Gulf. The sea is named for the port of Okhotsk, itself named for the Okhota River. Geography The Sea of Okhotsk covers an area of , with a mean depth of and a maximum depth of . It is connected to the Sea of Japan on either side of Sakhalin: on the west through the Sakhalin Gulf and the Gulf of Tartary; on the south through the La Pérouse Strait. In winter, navigation on the Sea of Okhotsk is impeded by ice floes. Ice floes form due to the large amount of freshwater from the Amur River, lowering the salinity of upper levels, often raising the freezing point of the sea surface. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standard Length
Fish measurement is the measuring of individual fish and various parts of fish anatomy, their anatomies, for data used in many areas of ichthyology, including Taxonomy (biology), taxonomy and fishery biology. Overall length Standard length (SL) is the length of a fish measured from the tip of the snout to the posterior end of the last vertebra or to the posterior end of the midlateral portion of the Glossary of ichthyology#H, hypural plate. This measurement excludes the length of the caudal fin, caudal (tail) fin. Total length (TL) is the length of a fish measured from the tip of the snout to the tip of the longer lobe of the caudal fin, usually measured with the lobes compressed along the midline. It is a straight-line measure, not measured over the curve of the body. Standard length measurements are used with Teleostei (most Actinopterygii, bony fish), while total length measurements are used with Myxini (hagfish), Petromyzontiformes (lampreys) and usually Elasmobranchii (shark ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemitripterus
''Hemitripterus'' is a genus of marine ray-finned fishes, sculpins, belonging to the subfamily Hemitripterinae which is part of the Family (biology), family Agonidae. These fishes are found in the North Pacific Ocean, Pacific and Northwest Atlantic Oceans. Species The recognized species in this genus are: * ''Hemitripterus americanus'' (Johann Friedrich Gmelin, J. F. Gmelin, 1789) (sea raven) * ''Hemitripterus bolini'' (George S. Myers, G. S. Myers, 1934) (bigmouth sculpin) * ''Hemitripterus villosus'' (Peter Simon Pallas, Pallas, 1814) References Hemitripterinae Hemitripterus, Taxa named by Georges Cuvier {{Cottoidei-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Preoperculum
This glossary of ichthyology is a list of definitions of terms and concepts used in ichthyology, the study of fishes. A B C D E F G H I J K L M N O P R S T U V W References Further reading * {{Cite book , last1=Moyle , first1=Peter , url=https://books.google.com/books?id=sZYWAQAAIAAJ , title=Fishes: An Introduction to Ichthyology , last2=C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
