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The name "walleye" comes from its pearlescent eyes caused by the reflective tapetum lucidum which, in addition to allowing the fish to see well in low-light conditions, gives its eyes an opaque appearance. Their vision affects their behavior. They avoid bright light and feed in low light on fish that cannot see as well as they do. [9]
Common names of fish can refer to a single species; to an entire group of species, such as a genus or family; or to multiple unrelated species or groups. Ambiguous common names are accompanied by their possible meanings. Scientific names for individual species and higher taxa are included in parentheses.
The four-eyed fish eye. 1.Underwater retina 2.Lens 3. Air pupil 4. Tissue band 5. Iris 6. Underwater pupil 7. Air retina 8. Optic nerve. The maximum length of four-eyed fishes is up to 32 cm TL in A. microlepis, making this species the largest in the order Cyprinodontiformes.
Fish eyes are similar to the eyes of terrestrial vertebrates like birds and mammals, but have a more spherical lens. Birds and mammals (including humans) normally adjust focus by changing the shape of their lens, but fish normally adjust focus by moving the lens closer to or further from the retina .
Although Lake Winnipeg was once the main commercial source, it now comes from elsewhere, especially in Saskatchewan and Alberta, and the culinary name Winnipeg goldeye has come to be associated with the city where it is processed. [17] The fish is the namesake of Winnipeg's minor league baseball team, the Winnipeg Goldeyes. [citation needed]
The eyes of Winteria telescopa differ slightly from those of other opisthoproctids by their more forward-pointing gaze.. Barreleyes, also known as spook fish (a name also applied to several species of chimaera), are small deep-sea argentiniform fish comprising the family Opisthoproctidae found in tropical-to-temperate waters of the Atlantic, Pacific, and Indian Oceans.
These fish are typically 4 to 10 inches (10 to 25 centimetres) long, but can grow to over one foot (30 cm) in length, and reach 2.25 pounds (1.02 kg). [4] The warmouth is occasionally confused with the rock bass ( Ambloplites rupestris ) or green sunfish ( Lepomis cyanellus ), both of which share its relatively large mouth and heavy body.
Hiodontidae, commonly called mooneyes, is a family of ray-finned fish with a single included genus Hiodon. The genus comprise two extant species native to North America and three to five extinct [1] species recorded from Paleocene to Eocene age fossils. They are large-eyed, fork-tailed fish that superficially resemble shads. The vernacular name ...