Nacella
Nacella is a southern, cold-water genus of true limpets, marine gastropod molluscs in the family Nacellidae, the true limpets.
These limpets are found in the littoral zone and sublittoral zone of Antarctic and sub-Antarctic waters including. The grayish-brown shell is suboval and flattened and the ribbing on the shell is rather flat. The shiny interior of the shell is rust-colored or chocolate-brown.
Species
Species within the genus Nacella include:Nacella clypeater R. P. Lesson, 1831 - Chilean copper limpetNacella concinna Strebel, 1908 Nacella deaurata J. F. Gmelin, 1791 - Patagonian copper limpetNacella delesserti Philippi, 1849 Nacella edgari Powell, 1957 Nacella flammea Gmelin, 1791 Nacella kerguelenensis Nacella macquariensis Finlay, 1927Nacella magellanica J. F. Gmelin, 1791 - Magellanic copper limpetNacella mytilina Helbling, 1779 Nacella terroris Nacella yaghana ''sp. nov. González-Wevar & Nakano, 2019
; Species brought into synonymy:
Nacella baylei Cossmann, 1882: synonym of † Acroreia baylei Nacella cernica H. Adams, 1869: synonym of Cellana livescens Nacella chiloensis : synonym of Nacella magellanica Nacella compressa Verco, 1906: synonym of Naccula compressa Nacella compressa Mabille & Rochebrune, 1889: synonym of Nacella mytilina Nacella crebristriata Verco, 1904: synonym of Asteracmea crebristriata Nacella delicatissima Strebel, 1907: represents particular morphotypes of Nacella deaurata Nacella falklandica Preston, 1913: synonym of Nacella mytilina Nacella flexuosa Hutton, 1873: synonym of Cellana radians Nacella fuegiensis L. A. Reeve, 1855 - Tierra del Fuego limpet: synonym of Nacella deaurata Nacella mytiloides Schumacher, 1817: synonym of Nacella mytilina Nacella parva Angas, 1876: synonym of Naccula parva Nacella peltoides Carpenter, 1864: synonym of Williamia peltoides Nacella polaris : synonym of Nacella concinna Nacella stowae Verco, 1906: synonym of Asteracmea stowae Nacella strigatella Rochebrune & Mabille, 1885: synonym of Nacella deaurata Nacella subspiralis Carpenter, 1864: synonym of Williamia subspiralis Nacella tasmanica Tate & May, 1900: synonym of Propilidium tasmanicum Nacella venosa : synonym of Nacella magellanica''