Porosalvania solidula, Gofas, 2007

Gofas, Serge, 2007, Rissoidae (Mollusca: Gastropoda) from northeast Atlantic seamounts, Journal of Natural History 41 (13 - 16), pp. 779-885 : 848

Porosalvania solidula n. sp.

( Figures 43–46 )

Type material

Holotype MNHN 9720 (spm., 2.40× 1.38 mm) from Seamount 2 sta. DW140, in MNHN; 30 paratypes MNHN 9776 (spm., 2.76×1.76 to 3.20×2.10/3.30× 1.86 mm) from Seamount 2 sta. DW152, in MNHN.

Type locality

Figures

Figure 43. Porosalvania solidula n. sp. from Meteor seamount, DW152 (470 m). (A) Paratype (spm.), actual size 2.82 mm; (B–D) paratypes (sh.), same locality, actual sizes 2.84, 2.50, and 3.10 mm; (E) operculum of another paratype, actual size 0.95 mm; (F) protoconch of another paratype; (G) microsculpture. Scale bars: 100 Mm (F); 50 Mm (G).

Figure 44. Porosalvania solidula n. sp. (A) Holotype (living specimen) from Meteor seamount, DE140 (308 m), actual size 2.34 mm; (B) detail of head and propodium; (C) detail of opercular lobes and metapodium.

Figure 45. Porosalvania solidula n. sp. (A) Partial view of the radula of a paratype from Meteor seamount, DW152 (470 m); (B) detail of the central teeth, tilted 30° with respect to (A), showing paired basal denticles and poorly developed U-shaped projection; (C) detail of the distal part of laterals and marginals, tilted likewise to show the denticles on the outer marginals, which are concealed in (A). Scale bars: 10 Mm.

Figure 46. Porosalvania solidula n. sp. (A–C) Shells from Hyères seamount, DW182 (480 m), actual sizes 2.88, 2.80, and 3.16 mm; (D) protoconch, same shell as (B); (F, G) shells from Irving seamount, DW215 (275 m), actual sizes 2.36 and 2.10 mm; (H) protoconch of another shell, same locality. Scale bars: 100 Mm (D, H); 50 Mm (E).