Figure 17 in Rissoidae (Mollusca: Gastropoda) from northeast Atlantic seamounts

Figure 17. (A, B) Alvania stenolopha Bouchet and Warén, 1993, shells from Atlantis seamount, DW261 (1340 m), actual size 2.12 and 2.02 mm; (C) protoconch of a juvenile shell, same locality; (D) detail of microsculpture, same shell as (A); (E) Alvania macella n. sp., holotype (sh.) from Atlantis seamount, DW261, actual size 2.04 mm; (F) paratype (sh.), same locality, actual size 2.10 mm; (G) protoconch of the same paratype; (H) detail of microsculpture of the holotype. Scale bars: 100 Mm.