Stomatolina

Herbert, David G., 2015, An annotated catalogue and bibliography of the taxonomy, synonymy and distribution of the Recent Vetigastropoda of South Africa (Mollusca), Zootaxa 4049 (1), pp. 1-98 : 64

Stomatolina sp.—new record

( Figure 8 M– O)

Distribution. Northern Zululand, Kosi Bay to Leadsman Shoal; primarily 50–100 m (living 52–54 m).

Notes. A deeper water stomatelline with a crenulate shoulder on spire whorls; body whorl with coarse subsutural folds and two nodular cords, one at shoulder and one just above periphery; intermediary spiral sculpture well developed; inner lip of aperture reflected over and closing umbilicus; shell variously mottled in shades of pink and red, commonly with spiral rows of brownish flecks, umbilical region white.

With its two nodular cords, this species resembles Microtis A. Adams, 1850 , but the living animal does not have the deeply bifid propodium reported to occur in that genus.

Figures

FIGURE 8. Stomatellinae. A – C, Stomatolina angulata (A. Adams, 1850), off Boteler Point, KwaZulu-Natal, 51 m, diameter 9.6 mm (NMSA S 9638). D – F, Stomatolina cf. calliostoma (A. Adams, 1850), NE of Kosi Bay, KwaZulu-Natal, 42 – 44 m, diameter 8.4 mm (NMSA S 5315). G – I, Stomatolina cf. rubra (Lamarck, 1822), between Bhanga Neck and Kosi Bay, KwaZulu-Natal, 12 m, diameter 9.6 mm (NMSA S 2465). J – L, Stomatolina aff. danblumi Singer & Mienis, 1999, Sodwana Bay, KwaZulu-Natal, 18 – 30 m, diameter 13.5 mm (NMSA V 7225). M – O, Stomatolina sp. SE of Kosi Bay, KwaZulu-Natal, 54 m, diameter 13.1 mm (NMSA S 7609). [Images to scale.]