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Burnupia Brunnea
''Burnupia'' is a genus of small freshwater snails or limpets, aquatic gastropod mollusks that are traditionally placed in the family Planorbidae. However, according to the molecular markers ( COI, 18S rRNA), the genus ''Burnupia'' differs from ancylids and from Planorboidea.Albrecht C., Wilke T., Kuhn K., Streit B. (2004). "Convergent evolution of shell shape in freshwater limpets: the African genus ''Burnupia''". ''Zoological Journal of the Linnean Society'' 140(4): 577-586. . Distribution This genus is generally confined to Africa and Brazil.Brown D. S. (1994). ''Freshwater Snails of Africa and their Medical Importance''. Taylor & Francis. . Species The number of species in the genus ''Burnupia'' is highly uncertain and there are 21 specific names recognized. Also in 2011 IUCN Red List there are recognized 21 species: 19 of them are Data Deficient, and '' Burnupia crassistriata'' and '' Burnupia stuhlmanni'' with Near Threatened status.IUCN (2011). IUCN Red List of Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animalia
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a bilaterally symmetric body plan. The Bilateria include the protostomes, containing animals such as nematodes, arthropods, flatworms, annelids and molluscs, and the deuterostomes, containing the echinode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
