Anna is a genus of sea snails, marine gastropod molluscs in the family Pisaniidae.

Species According to the World Register of Marine Species (WoRMS), the following species is included within the genus Anna † Anna massena Risso, 1826 (nomen dubium) Species brought into synonymy Anna assimilis (Reeve, 1846): synonym of Aplus assimilis (Reeve, 1846) Anna capixaba Coltro & Dornellas, 2013: synonym of Ameranna capixaba (Coltro & Dornellas, 2013) Anna dorbignyi (Payraudeau, 1826): synonym of Aplus dorbignyi (Payraudeau, 1826) Anna florida Garcia, 2008: synonym of Ameranna florida (Garcia, 2008) Anna goncalvesi (Coltro, 2005): synonym of Engina goncalvesi Coltro, 2005 Anna marijkae (De Jong & Coomans, 1988): synonym of Ameranna milleri (Nowell-Usticke, 1959) Anna milleri (Nowell- Usticke, 1959): synonym of Ameranna milleri (Nowell-Usticke, 1959) Anna royalensis Watters, 2009: synonym of Ameranna royalensis (Watters, 2009) Anna scabra (Locard, 1886): synonym of Aplus scaber (Locard, 1891) Anna willemsae (De Jong & Coomans, 1988): synonym of Ameranna willemsae (De Jong & Coomans, 1988)

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