Figure 57. Rissoina meteoris n in Rissoidae (Mollusca: Gastropoda) from northeast Atlantic seamounts

Figure 57. Rissoina meteoris n. sp. (A) Holotype (sh.) from Meteor seamount, DW152 (470 m), actual size 8.25 mm; (B) protoconch of a paratype, same locality; (C) microsculpture of teleoconch whorl; (D, E) operculum of another paratype from Meteor seamount, DW136 (305 m), actual size 1.1 mm; (F) partial view of the radula (laterals and marginals missing on the right), showing faint cusps developed on the upper part of outer marginals, same specimen as (D). Scale bars: 100 Mm (B); 50 Mm (C); 10 Mm (F).