Mackerel is a common name applied to a number of different species of pelagic fish, mostly from the family Scombridae. They are found in both temperate and tropical seas, mostly living along the coast or offshore in the oceanic environment.
The beardfishes consist of a single extant genus, Polymixia, of deep-sea marine ray-finned fish named for their pair of long hyoid barbels. They are classified in their own order Polymixiiformes. But as Nelson says, "few groups have been shifted back and forth as frequently as this one, and they were recently added to Paracanthoptergii". For instance, they have previously been classified as belonging to the Beryciformes. They are of little economic importance.
Oryzomys nelsoni is an extinct rodent of María Madre Island, Nayarit, Mexico. Within the genus Oryzomys of the family Cricetidae, it may have been most closely related to the mainland species O. albiventer. Since its first description in 1898, most authors have regarded it as a distinct species, but it has also been classified as a mere subspecies of the marsh rice rat (O. palustris).
The Florida red-bellied cooter or Florida redbelly turtle is a species of turtle in the family Emydidae.
The San Joaquin antelope squirrel or Nelson's antelope squirrel, is a species of antelope squirrel, in the San Joaquin Valley of the U.S. state of California.
Caproidae, or boarfishes, are a small family of marine fishes comprising two genera and 19 species. These fishes are found throughout the world in temperate and tropical seas.
Solanum nelsonii, common names pōpolo and Nelson's horsenettle, is a partially woody sprawling shrub-like perennial plant in the family Solanaceae, part of the Solanum or nightshade genus. This poisonous plant is endemic to the Pacific Islands. It grows low in coastal sites in coral rubble to pure sand.
Nelson's collared lemming is a species of rodent in the family Cricetidae.
The Barna baril is a fish in genus Opsarius of the family Cyprinidae. It is found in India, Nepal, Bangladesh and Myanmar.
Opsarius bernatziki is a fish in the Opsarius genus of the family Cyprinidae. It is found in Thailand, Southeast Myanmar, and the Malay Peninsula. It is associated with a freshwater habitat and can grow up to 9.1 cm.
Opsarius koratensis is a fish in genus Opsarius of the family Cyprinidae. It is found in the Mekong and Chao Phraya basins and can reach 10 cm (3.9 in) SL.
Opsarius is a genus of fish. Its representatives can be found in a variety of countries in South East Asia. These countries include Cambodia, Laos, Thailand, Myanmar, India, and China. Certain species of Opsarius are considered endemic to their respective habitats; such as Opsarius cocsa and Opsariusmaculatus which are endemic to India.
Joseph (Joe) Schieser Nelson was a Canadian ichthyologist. He is best known for the book Fishes of the World, which is the standard reference in fish systematics and evolution.
The Baja California rainbow trout or San Pedro Martir trout or Nelson's trout is a localized subspecies of the rainbow trout, a freshwater fish in the family Salmonidae.
Mexican native trout —Mexican rainbow trout, sometimes Baja rainbow trout and Mexican golden trout —occur in the Pacific Ocean tributaries of the Baja California peninsula and in the Sierra Madre Occidental of northwestern Mexico as far south as Victoria de Durango in the state of Durango. Many forms of the Mexican rainbow trout, subspecies of the rainbow trout, have been described. The Mexican golden trout is a recognized species.
The Travancore yellow barb is a species of fish in the family Cyprinidae. The species was discovered in 2011, and was subsequently named and described by Mathews Plamoottil from the Baby John Memorial Government College, Chavara, Kollam, Kerala in 2014 in the International Journal of Fauna and Biological Studies. It was collected from the Kallumkala region of Manimala River in Kerala, India. P. nelsoni is named after Nelson P. Abraham of St. Thomas College, Kozhencherry.
Opsarius barnoides is a fish in genus Opsarius of the family Cyprinidae. It is found in Myanmar and China.
Opsarius maculatus is a fish in the genus Opsarius of the family Cyprinidae. It is endemic to India and can reach 5.9 cm (2.3 in) SL.
Sceloporus nelsoni, Nelson's spiny lizard or southern Nelson's lizard, is a species of lizard in the family Phrynosomatidae. It is endemic to Mexico. This species contains 2 further subspecies, Sceloporus nelsoni barrancarum and Sceloporus nelsoni nelsoni.
Stolephorus nelsoni, also known as Nelson's anchovy, is a species of ray-finned fish in the family Engraulidae. It is found in the eastern Indian Ocean.
