Gastropods from the Burdwood Bank (southwestern Atlantic): an overview of species diversity Author Luca, Javier Di Author Zelaya, Diego G. text Zootaxa 2019 2019-01-10 4544 1 41 78 journal article 27685 10.11646/zootaxa.4544.1.2 2f89f82f-be57-45b4-ad3c-ed72a7647551 1175-5326 2618137 211842AA-6C98-425B-9377-1AF0DC78C893 Parmaphorella melvilli ( Thiele, 1912 ) Fig. 2A Tugalia antarctica Melvill & Standen, 1907 : 98 , fig. 1 Tugali melvilli Thiele, 1912 : 257 ( nom. nov. pro T. antarctica Melvill & Standen, 1907 non Strebel, 1907 ) Parmaphorella melvilli — Powell, 1951 : 87 , fig. G3 (radula) Parmophoridea melvilli — Dell, 1990 : 77 , fig. 122 Examined material. 3 sh. (MACN-In 40660). Description. Shell length to 11.7 mm (up to 23 mm according to Melvill & Standen 1907 ); patelliform, low, moderately thick. Apex rolled, located close to posterior margin. Surface white; sculptured with numerous, low radial ribs and prominent growth lines, which produce small beads at their intersections. Aperture ovate, interior white, margin crenulated. Slit closed.