Sigapatella

This group of species was originally classified under Calyptraea (Sigapatella) by Lesson in 1830. In 1990 the subgenus was elevated to the rank of genus as Sigapatella by Beu et al. and confirmed in 2000 by Camacho et al. (2000). ==Description==

The oval shell has a lateral apex. The interior plate has a submarginal axis. The free margin is concave. ==Species==

Species within the genus Sigapatella include: • † Sigapatella americana Ortmann 1900 • Sigapatella calyptraeformis (Lamarck) • † Sigapatella crater (Finlay, 1926) • † Sigapatella gigantea (Beu, 1970) • Sigapatella hedleyi (Smith, 1915) Hedley's shelf limpet • † Sigapatella maccoyi (Suter, 1917) • † Sigapatella mapalia Marwick, 1929 • Sigapatella novaezelandiae (Lesson, 1830) • Sigapatella nukumaruana Marshall, 2003 • Sigapatella ohopeana Marshall, 2003 • † Sigapatella perampla (Powell & Bartrum, 1929) • Sigapatella spadicea Boshier, 1961 • † Sigapatella (Spirogalerus) lamellaria (Finlay & Marwick, 1937) (synonym: Spirogalerus lamellaria Finlay & Marwick 1937) ;Species brought into synonymy: • Sigapatella maculata Suter, 1913 : synonym of Sigapatella novaezelandiae (Lesson, 1830) ==References==