Southwestern Atlantic species of conoidean gastropods of the genus Aforia Dall, 1889 Author Pastorino, Guido Author Sánchez, Noelia text Zootaxa 2016 4109 4 458 470 journal article 39105 10.11646/zootaxa.4109.4.4 b8f51e40-a1e5-454e-976f-9740b74e07f9 1175-5326 267443 CC0AA405-3473-4482-8DF4-DAAB18E8CB79 Aforia magnifica ( Strebel, 1908 ) Figures 7 A–D Surcula magnifica Strebel, 1908 : 19 , pl. 2, figs. 23 a–d. Aforia magnifica (Strebel) . Powell, 1951 : 167 , fig. M91; 1958: 201; Dell, 1990 : 231 , figs. 411–412, 436; Hain, 1990 : 69 , pl. 7, figs. 8 a–c, pl. 26, figs. 1–2; Numanami et al ., 1996 : 211 , 213, pl. 3, figs. 1, 4; Aldea and Troncoso, 2010 : 139 , fig. 139; Engl, 2012 : 179 , Pl. 73, fig. 2. Type material. Lectotype , SMNH 1328, illustrated by Engl (2012, Pl. 73, fig. 2) . FIGURE 4. Aforia obesa new species . A–C, Holotype, MACN-In 40475, St. 41; D–F, paratype, MACN-In 40476, St. 8; G, Operculum, interior and exterior view, scale bar = 5 mm; H–J, paratype, MACN-In 40477, St. 10; K–M, paratype, MACN-In 40478, St. 44. Type locality. Graham Region, 64º03’S – 53º67’W , in 360 m depth. Material examined. CNP-Inv. 1835, 1854 both from St. 2 CAV2014, 61º6.952’S , 56º12.69’W , in 563–648 m depth, 2 specimens ; CNP-Inv 620, St. 12 CAV2011, 61º46’S , 58º26’W in 200 m , 1 specimen ; CNP-Inv. 1960, St. 14 CAV2014, 63º53.880’S , 61º52.823’W in 151 m depth, 1 specimen ; CNP-Inv. 1952, St. 15 CAV2014, 63º54.151’S , 62º7.686’W in 270 m depth; CNP-Inv. 1946, St. 17 CAV2014, 64º1.564’S , 62º58.518’W , in 405–440 m depth, 1 specimen ; CNP-Inv. 616, St. 19 CAV2011, 62°52´S , 60°36´W in 559 m ; CNP-Inv. 1822, 1812, all from St. 19 CAV 2014, 64°6.488’S , 63°58.034’W in 559 m depth; CNP-Inv. 615, St. 20 CAV2011, 62º47’S , 60º12’W in 200 m depth, 2 specimens ; CNP-Inv. 1958, St. 21 CAV2014, 64º44.693’S , 63º4.266’W in 326–370 m , 1 specimen ; CNP-Inv. 614, 617, 618, 619, 2018, 2019 all from St. 22 CAV2011, 62º43’S , 56º32’W in 200 m depth, 15 specimens . All the station are from several cruises to Antarctic Peninsula area on board of the RV “Puerto Deseado” during 2011 and 2014 field work; MACN-In 35052, 1 sp. , Isla Baja, Antarctica ; MACN-In 35049, 1 sp. , 25 de mayo Is., South Shetland Is.; MLP 7470, 1 sp. , South Orkneys. Distribution. Circum-Antarctic (according to Aldea & Troncoso, 2010 ). Remarks. The shell of this species is characterized by a single rounded carina along the whole shell and a second carina on the last whorl. The anal sinus has the angulation above the keel. The operculum is large, quadrangular, with terminal nucleus. Rachidian with a single large cusp and a subrectangular base. Marginal teeth duplex with major element together to a robust accessory limb, base attached to radular membrane and major element.