Richness, systematics, and distribution of molluscs associated with the macroalga Gigartina skottsbergii in the Strait of Magellan, Chile: A biogeographic affinity study Author Rosenfeld, Sebastian Laboratorio de Macroalgas Antarticas y Subantarticas, Universidad de Magallanes, Casilla 113 - D, Punta Arenas, Chile & Instituto de Ecologia y Biodiversidad (IEB), Santiago Author Aldea, Cristian Laboratorio de Ecologia y Medio Ambiente, Instituto de la Patagonia, Universidad de Magallanes & Programa GAIA-Antartica, Universidad de Magallanes cristian.aldea@umag.cl Author Mansilla, Andres Laboratorio de Macroalgas Antarticas y Subantarticas, Universidad de Magallanes, Casilla 113 - D, Punta Arenas, Chile & Instituto de Ecologia y Biodiversidad (IEB), Santiago & Parque Etnobotanico Omora, Sede Puerto Williams, Universidad de Magallanes Author Marambio, Johanna Laboratorio de Macroalgas Antarticas y Subantarticas, Universidad de Magallanes, Casilla 113 - D, Punta Arenas, Chile Author Ojeda, Jaime Laboratorio de Macroalgas Antarticas y Subantarticas, Universidad de Magallanes, Casilla 113 - D, Punta Arenas, Chile & Instituto de Ecologia y Biodiversidad (IEB), Santiago & Parque Etnobotanico Omora, Sede Puerto Williams, Universidad de Magallanes text ZooKeys 2015 2015-08-31 519 49 100 http://dx.doi.org/10.3897/zookeys.519.9676 journal article http://dx.doi.org/10.3897/zookeys.519.9676 1313-2970-519-49 E6F1CD8274AD4DE59806B00AADC4771B FFCEFFC81C5BC028FF86FFA85720FF85 579018 Nuttallochiton martiali (Rochebrune in Rochebrune & Mabille, 1889) Fig. 3J Material examined. 1 spm (20 x 10 mm ). Synonymy. See Kaas and Van Belle (1987) . Remarks. This species presents a morphological similarity to Plaxiphora aurata but presents longitudinal elevations in the pleural areas, while Plaxiphora aurata does not possess this sculpture ( Schwabe 2009 ). According to Sirenko (2006) , it is a rare species. Distribution. Magellanic: Gulf of Corcovado ( Cardenas et al. 2008 ) and Comau Fjord ( Schwabe et al. 2006 ); Strait of Magellan ( Leloup 1956 ): Punta Santa Ana (this record) and Carlos III Island ( Aldea et al. 2011a ); Robalo Bay ( Dell 1971 ); Malvinas/Falkland Islands ( Dell 1964 , Sirenko 2006 ) and Staten Island ( Sirenko 2006 ).