Spiralix (Burgosia) vetusta (Gastropoda: Moitessieriidae) a new species from Asturias (North of Spain

EnglishA new species of the family Moitessieriidae Bourguignat, 1863 is described from Asturias (north of Spain), belonging to the genus Spiralix Boeters, 1972, and included in the subgenus Burgosia Boeters, 2003. It is the second species known in the area. It diers from other species by its conchological characteristics, inclu-ding teleoconch and protoconch microsculpture. e description of Spiralix vetusta sp. n. raises to twelve the number of Spiralix species present in Spain and to six the species included in the subgenus Burgosia. catalaEs descriu una nova especie de la familia Moitessieriidae Bourguignat, 1863 d’Asturies (nord d’Espanya), pertanyent al genere Spiralix Boeters, 1972, que s’inclou dins el subgenere Burgosia Boeters, 2003, es tracta de la segona especie coneguda per a la familia a la zona. Es diferencia d’altres especies descrites pels seus caracters conquiliologics, entre ells la microescultura de la teleoconquilla i de la protoconquilla. Amb la descripcio de Spiralix vetusta sp. n. s’eleven a dotze les especies del genere Spiralix presents a Espanya i a sis les incloses dins el subgenere Burgosia.