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These elongated, predatory fish are distinguished by their long dorsal fins, large mouths, and shiny teeth. They breathe air with gills, which allows them to migrate short distances over land. They have suprabranchial organs, which are primitive forms of labyrinth organs, that develop when they grow older. [1]
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 ...
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.
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 ...
The orcas’ dorsal fins are bent in opposite directions — the inspiration for their names. The two travel huge distances along South Africa’s eastern coastline up as far as Namibia.
They are elongate, silvery, predatory marine fishes that lack scales and have sharp teeth likely used for hunting fishes. However, as their scientific name (meaning "without fins on its back") suggests, they lack dorsal fins which easily differentiates them from their close allies, especially the similar-looking lancetfishes. Another feature ...
The Pacific viperfish (Chauliodus macouni), is a predatory deep-sea fish found in the North Pacific. [1] [2] It is reported as being either mesopelagic [1] or bathypelagic, with diel vertical migration to shallower waters. [2] The Pacific viperfish is one of the nine different species that belong to the genus Chauliodus, the viperfish.