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 Tonicia chilensis (Frembly, 1827) Fig. 3E-F Material examined. 40 spm (9 x 5 - 26 x 13 mm ). Synonymy. See Kaas et al. (2006) . Remarks. Sirenko (2006) did not include this species within the list of Magellanic Polyplacophora . However, Schwabe et al. (2006) named it as Tonicia chilensis for all individuals that presented the following characteristics: well-marked micro-granulations in all of the valves, granules that are marked towards the margins of the valves, characteristics that other species of the genus did not present, except Tonicia lebruni . Our specimens did present granules but disposed in an irregular form, and Tonicia calbucencis sometimes can present granules along the entirety of the margins ( Schwabe et al. 2006 ). Distribution. WTSP: Peru ( Leloup 1956 ), Valparaiso ( Leloup 1956 ), Montemar ( Leloup 1956 ), Punta Pingueral and Cape Tirua ( Aldea and Valdovinos 2005 ), Gulf of Arauco ( Leloup 1956 ) and Valdivia ( Zagal and Hermosilla 2001 ). Magellanic: Comau Fjord ( Schwabe et al. 2006 ), Punta Pulga ( Dell 1971 ), Gulf of Ancud ( Leloup 1956 ), and Estero Elefantes ( Reid and Osorio 2000 ); Strait of Magellan: eastern micro-basin of the Strait of Magellan ( Rios et al. 2003 ) and Punta Santa Maria (this record); Robalo Bay ( Ojeda et al. 2010 ).