Rissoa Strebel, 1908 : 56 Rissoa ( Onoba ) fuegoensis Melvill & Standen, 1912 : 124 Ponder & Worsfold, 1994 : 43 Gastropods from the Burdwood Bank (southwestern Atlantic): an overview of species diversity Luca, Javier Di Zelaya, Diego G. Zootaxa 2019 2019-01-10 4544 1 41 78 49KRH (Strebel, 1908) Strebel 1908 [151,556,152,178] Gastropoda Rissoidae Onoba GBIF Animalia Littorinimorpha 13 54 Mollusca species fuegoensis   Fig. 3G     Rissoa( Cingula?)  fuegoensis  Strebel, 1908: 56, pl. 6, figs. 90a, b    Rissoa( Onoba) fuegoensis—  Melvill & Standen, 1912: 124     Onoba fuegoensis—  Ponder & Worsfold, 1994: 43, figs. 23e, f, 24a–c, 30 (protoconch and radula)   Examined material.2 an. and 9 sh. (MACN-In 40672).   Description.Shell height to 2.5 mm(up to 3.05 mmaccording to Ponder & Worsfold 1994); elongate-conical, moderately solid. Protoconch large, of 1.75 convex whorls, microscopically sculptured. Teleoconch of up to 3.5 whorls, markedly convex in outline; last whorl comprising about 55% of total shell height. Suture impressed. Surface whitish, translucent in well preserved specimens; sculptured with 3 to 5 primary spiral cords per whorl, and 5 or 6 additional cords at the base; interspaces with delicate spiral threads. Aperture ovate, laterally expanded towards the base, interior white; columellar callus moderately thick, slightly reflected. Operculum ovate, paucispiral; yellowish, translucent.