FIGURES 1–6 in Seguenziidae (Gastropoda: Vetigastropoda) from SE Brazil collected by the Marion Dufresne (MD 55) expedition

FIGURES 1–6. Ancistrobasis and Carenzia from the MD55 expedition. 1–3. Ancistrobasis costulata from Espírito Santo; 1. MNHN (MD55 sta DC75, H = 4.0 mm), apertural view; 2. MNHN (MD55 sta DC73), protoconch detail under SEM (scale bar = 0.1 mm); 3. Same, lateral view under SEM (H = 2.8 mm). 4–6. Carenzia carinata from Espírito Santo; 4. MNHN (MD55 sta DC70), apertural view (H = 2.0 mm); 5. Same, apical view under SEM (D = 3.5 mm); 6. Same, protoconch detail under SEM (scale bar = 0.1 mm).