FIGURES 7–12 in Seguenziidae (Gastropoda: Vetigastropoda) from SE Brazil collected by the Marion Dufresne (MD 55) expedition

FIGURES 7–12. Carenzia and Hadroconus from the MD55 expedition. 7–8. Carenzia trispinosa from Espírito Santo; 7. MNHN (MD55 sta CB77), apertural view (H = 3.6 mm); 8. MNHN (MD55 sta DC70), protoconch detail under SEM (scale bar = 0.1 mm); 9–12. Hadroconus altus from Rio de Janeiro; 9. MNHN (MD55 sta CB99), apetural view (H = 6.0 mm); 10. Same, umbilical view under SEM (D = 7.1 mm); 11. Same, protoconch detail under SEM (scale bar = 0.1 mm); 12. same, apical, slightly umbilical view under SEM.