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Actinopterygii (/ ˌ æ k t ɪ n ɒ p t ə ˈ r ɪ dʒ i aɪ /; from Ancient Greek ἀκτίς (aktis) 'having rays' and πτέρυξ (ptérux) 'wing, fins'), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish [2] that comprise over 50% of living vertebrate species. [3]
While surveying the cave, researchers said they found 11 fish with transparent fins living inside. The fish turned out to be a new species: Balitora anlongensis, or the Anlong stone loach.
When Charles Frédéric Gerard described Orthopristis duplex in 1858 he placed it in a new genus. This taxon was later shown to be a junior synonym of Linnaeus's P. chrysoptera, so this species is the type species of the genus Orthopristis. [9] The specific name chrysoptera means "golden-finned." Linnaeus did not explain this, but it may refer ...
The new species doesn’t have lateral lacrimal or second preopercular spines, meaning a spine on the head and the front of the gills. The fish also has much longer lower pectoral-fin rays, the ...
Lancetfish possess a long and very high dorsal fin, soft-rayed from end to end, with an adipose fin behind it. The dorsal fin has 41 to 44 rays and occupies the greater length of the back. This fin is rounded in outline, about twice as high as the fish is deep, and can be depressed into a groove along the back.
The American pickerel (Esox americanus) is a medium-sized species of North American freshwater predatory fish belonging to the pike family. [2] The genus Esox is placed in family Esocidae in order Esociformes). Two subspecies are sometimes recognised: Redfin pickerel, sometimes called the brook pickerel, E. americanus americanus Gmelin, 1789;
The European perch (Perca fluviatilis), also known as the common perch, redfin perch, big-scaled redfin, English perch, Euro perch, Eurasian perch, Eurasian river perch, Hatch, poor man's rockfish or in Anglophone parts of Europe, simply the perch, is a predatory freshwater fish native to Europe and North Asia. It is the type species of the ...
It is one of 26 endemic species of triplefin found in New Zealand across 14 genera. [2] This species is very common in the temperate coastal and intertidal waters of New Zealand where it often lives in cobble habitats, [3] [4] [5] but has been found as deep as 30 m. [6] It has a maximum body length of around 70 mm and lives for up to three ...