The Lerma River is Mexico's second longest river.
The inland silverside is a neotropical silverside native to eastern North America, and introduced into California. It is a fish of estuaries and freshwater environments.
Goldman's woodrat is a rodent species in the family Cricetidae. It is found only in Mexico throughout the Mexican Plateau, stretching from southeastern Chihuahua to southern San Luis Potosí and northern Querétaro. The plateau is an average 5,988 ft. above sea level and covers a land area of 232,388 sq. miles.
The Snake River sucker is an extinct species of ray-finned fish in the family Catostomidae.
The Mexican dace, or Mexican chub, is an extinct species of ray-finned fish in the family Cyprinidae. It was found only in Mexico, in the canals and streams of the Valley of Mexico. It is estimated to have become extinct circa 1983. The extinction of this species coincided with the drying of water bodies in the valley. This drying was a result of the increasing demands placed on the water resources of the valley by agriculture, as well as by the growth of Mexico City and its suburbs.
The black jackrabbit is a species of mammal in the family Leporidae. Endemic to Mexico, its only known location is Espiritu Santo Island in the Gulf of California. The IUCN has listed this species as a "vulnerable species" because of its restricted range. This taxon is regarded by some authorities as being a subspecies of the black-tailed jackrabbit, found on the mainland of Mexico.
Chirostoma bartoni, the Alberca silverside, is a species of neotropical silverside endemic to the Lerma River basin of Mexico. Typical adult specimens are approximately 7.1 cm in length.
Chirostoma is a genus of Neotropical silversides from the Lerma River basin in Mexico, including lakes Chapala and Pátzcuaro. Fish in the genus collectively go by the common name charal/charales in their native range. They are heavily fished, but several of the species have become threatened due to habitat loss, introduced species and overfishing. Three species are considered extinct: C. bartoni, C. charari (1957) and C. compressum (1900). Four others have not been recorded recently and may also be extinct.
Chirostoma humboldtianum, the shortfin silverside, is a species of neotropical silverside endemic to Mexico. It reaches a maximum length of around 20 cm. This species was described as Atherina humboldtiana by Achille Valenciennes in 1835 with a type locality of "Mexico". Valenciennes gave it its specific name in honour of the Prussian explorer Alexander von Humboldt (1769-1859).
Poblana is a genus of Neotropical silversides that are endemic to Mexico, with each of the four threatened species restricted to a single Oriental Basin maar lake. They are small fish that do not surpass 8 cm (3 in) in standard length.
Poblana letholepis, the La Preciosa silverside is a species of neotropical silverside endemic to Mexico. It was described by Jose Álvarez del Villar in 1950 from types collected from the crater lake of La Preciosa which is 4 kilometres (2.5 mi) southeast of Alchichica, Puebla State, Mexico at and elevation of 2,365 metres (7,759 ft).
Poblana squamata, the Quechulac silverside, is a species of neotropical silverside endemic to Mexico. It was described by Jose Álvarez del Villar in 1950 from types collected from the crater lake of Quechulac which is 6.5 kilometres (4.0 mi) southeast of Alchichica, Puebla State, Mexico at and elevation of 2,365 metres (7,759 ft).
Odontesthes regia is a fish belonging to the family Atherinopsidae, commonly referred to in English as Chilean silverside, Peruvian silverside or sea silverside, and in Spanish as pejerrey or pejerrey de mar.
Atherinopsis californiensis, the jack silverside or jacksmelt, is a species of neotropical silverside native to the Pacific coast of North America from Oregon, United States to southern Baja California, Mexico. This species grows to 45 cm (18 in) in total length and is important commercially as a source of human food. It is the only known member of its genus. The adults occur in inshore areas, such as bays. They form schools. This species is a demersal spawners in inshore habitats, it is oviparous and the larvae are planktonic, living at the very surface of the water and feeding on phytoplankton. The eggs are attached to one another and to the substrate by adhesive filaments in the chorion.
Membras martinica, the rough silverside, is a species of Neotropical silverside from the family Atherinopsidae, it is the type species of the genus Membras.
Invasive species in Mexico are a major cause of biodiversity loss, altering ecosystems, affecting native species, damaging environmental services and public health, and causing economic losses. An invasive species is one native to a particular area that has been introduced into a new habitat, adapting and altering to suit its new conditions.
Atherinella elegans is a species of fish in the family Atherinopsidae, the Neotropical silversides. It is endemic to the Río del Fuerte, Sinaloa, Mexico.
Chirostoma attenuatum – also known as slender silverside – was featured in the 2009 IUCN Red List of Threatened Species and the American Fisheries Society. They are found in Patzcuaro, Central Mexico. The species is at risk of being extinct. Eight helminth species, type of parasitic worms, including Posthodiplostomum minimum, Allocreadium mexicanum, Bothriocephalus acheilognathi, a cyclophyllidean cysticercoid, Arhythmorhynchus brevis, Spinitectus carolini, Capilaria patrcuarensis, and Eustrongylides sp., were discovered in 195 Chirostoma attenuatum fish from Lake Patzcuaro from October 1989 to December 1990. Posthodiplostomum minimum had the highest frequency and intensity; it had the most impact in harming the Chirostoma attenuatum fish.
