Sphaerolana
Encyclopedia
Sphaerolana is a genus of isopod
Isopoda
Isopods are an order of peracarid crustaceans, including familiar animals such as woodlice and pill bugs. The name Isopoda derives from the Greek roots and...

 crustacean
Crustacean
Crustaceans form a very large group of arthropods, usually treated as a subphylum, which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill and barnacles. The 50,000 described species range in size from Stygotantulus stocki at , to the Japanese spider crab with a leg span...

s in the family Cirolanidae
Cirolanidae
Cirolanidae is a family of isopod crustaceans, including the following genera:*Aatolana Bruce, 1993*Annina Budde-Lund, 1908*Antrolana Bowman, 1964*Aphantolana Moore & Brusca, 2003*Arubolana Botosaneanu & Stock, 1979...

, all of which are endemic to Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

. The genus Sphaerolana contains the following species: All three species are on the IUCN Red List
IUCN Red List
The IUCN Red List of Threatened Species , founded in 1963, is the world's most comprehensive inventory of the global conservation status of biological species. The International Union for Conservation of Nature is the world's main authority on the conservation status of species...

 as either vulnerable species
Vulnerable species
On 30 January 2010, the IUCN Red List of Threatened Species identified 9694 Vulnerable species, subspecies and varieties, stocks and sub-populations.-References:...

 (VU) or endangered species
Endangered species
An endangered species is a population of organisms which is at risk of becoming extinct because it is either few in numbers, or threatened by changing environmental or predation parameters...

(EN).
  • Sphaerolana affinis Cole & Minckley, 1970
  • Sphaerolana interstitialis Cole & Minckley, 1970
  • Sphaerolana karenae Rodriguez-Almaraz & Bowman, 1995
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