Rossiteria Brazier, 1895

Herbert, David G., 2024, The Umboniinae (Mollusca: Gastropoda: Trochidae) of New Caledonia, with descriptions of two new genera and eight new species, plus an additional new species from the Bismarck Sea, European Journal of Taxonomy 973, pp. 1-143 : 42

Genus Rossiteria Brazier, 1895

Gibbula (Rossiteria) Brazier, 1895: 728 .

Type species

Trochus nucleus Philippi, 1850 (by typification of replaced name), Recent, central Indo-West Pacific. Nom. nov. for Trochus (Solanderia) Fischer, 1879 , non Solanderia Duchassaing & Michelin, 1846 [Cnidaria]. Generic fossil record: Miocene to Recent ( Paleobiology Database 2024).

Diagnosis

Shell turbiniform, stout, size moderate (diameter up to 12 mm); whorls evenly rounded, last adult whorl deep; sculpture of spiral cords and finer lirae crossed by curved axial riblets producing fine, granular reticulation; umbilicus open, narrow, with two low funicles; columella lip thickened, bearing low nodules internally and notched basally; outer lip strongly indented below periphery; interior of outer lip with well-developed in-running ridges.

Operculum corneous, with relatively few, rapidly expanding whorls; surface with fine spiral microsculpture; peripheral fringe narrow with indistinct radial striations.

Radula with base-plates of rachidian and lateral teeth relatively robust; inner marginal tooth transitional with reduced cusp; cusps of marginals 5–10 largest, lanceolate with a large acuminate central denticle bearing smaller denticles along both margins.

Details of ctenidial morphology not available.

Remarks

Rossiteria is a distinctive genus to which species can be referred with relative confidence on account of characteristic shell features.