Rissoidae gastropods of the outer continental shelf and slope off Galicia (NW Spain) Author Oliver, Joan Daniel Alcorisa 83 - 12 C, 28043 Madrid, Spain. joandanieloliver @ hotmail. com Author Gofas, Serge Departamento de Biología Animal, Universidad de Málaga, E- 29071 Málaga, Spain. Author Urgorri, Victoriano Estación de Bioloxía Mariña da Graña, REBUSC, Universidade de Santiago de Compostela, Spain. Author Díaz-Agras, Guillermo Estación de Bioloxía Mariña da Graña, REBUSC, Universidade de Santiago de Compostela, Spain. Author Templado, José Museo Nacional de Ciencias Naturales (CSIC), José Gutiérrez Abascal 2, 28006 Madrid, Spain. text Zootaxa 2022 2022-10-18 5196 1 1 45 journal article 170600 10.11646/zootaxa.5196.1.1 e1042177-7e89-413a-b10b-3803d000d20d 1175-5326 7224080 1B12892E-D68F-4BFE-8E9A-7F19E220E73D Alvania wareni ( Templado & Rolán, 1986 ) ( Fig. 8 ) Material examined. ( 5 empty shells in the same sample): • 5 sh; 44° 09.896′N , 008° 39.581′W to 44° 10.129′N , 008° 39.494′W ; 438–459 m ; 15–24 Jul. 2008 ; A SELVA DRN-11 . Remarks. This species was only known previously from two specimens found off Portugal , one the holotype (from PORCUPINE Expedition, at 1809 m depth) and the other from THALASSA expedition at 810 m ( Bouchet & Warén 1993 ). Therefore, the five shells found in one of the samples studied at about 450 m depth extend the knowledge on this rare species and expand its distribution area and bathymetric range. They are fusiform, up to 2.7 x 1.4 mm , with a high spire, whose general shape resembles some European species of Onoba ( Figs. 8a–b ). Sculpture of weak spiral cords and axial ribs of similar width somewhat narrower than their respective interspaces. Microsculpture of fine striae ( Fig. 8c ). Oval aperture with thin outer lip. Dome-shaped paucispiral protoconch ( Figs. 8d, g ) with fine equidistant spiral threads starting from the nucleus ( Fig. 8h ). Some details of its microsculpture are shown in Figure 8e–i .