Calliotropis cf. pyramoeides Vilvens, 2007

Helwerda, Renate Ariane, Wesselingh, Frank Pieter & Williams, Suzanne T., 2014, On some Vetigastropoda (Mollusca, Gastropoda) from the Plio-Pleistocene of the Philippines with descriptions of three new species, Zootaxa 3755 (2), pp. 101-135 : 117

Calliotropis cf. pyramoeides Vilvens, 2007

( Figures 30–32 )

cf. 2007 Calliotropis pyramoeides nov. spec.—Vilvens: p. 36, figs 112–115.

Material. Anda 1 (20); Anda 2 (19); Anda 3 (11); Anda 5 (4); Anda 6 (5); AndaDeVos (4); AndaClif3 (3); Tiep 1 (1).

Characterization. Shell broadly conical, H 2.8 mm, W 2.9 mm; P globular, finely granulate, with four discontinuous spiral ribs and zigzag patterns, 1.1 whorls, DN 0.17–0.18 mm; P/T boundary thin rib; T ornamented with spiral and axial ribs with spines at intersections; spines lower on whorl develop into C-shaped lamellae; umbilicus broad, encircled by rib, with spiral and axial ribs inside.

Distribution. South-western Pacific ( New Caledonia area), alive at 200 m depth, empty shells at 250–350 m depth ( Vilvens 2007), apart from the studied material.

Remarks. The base of our shells appears to be taller than those figured in Vilvens (2007).

Figures

FIGURES 26 – 32. Calliotropidae. 26. Calliotropis arenosa nov. spec. RGM 608.272 (holotype). Locality AndaDeVos. (a) rear view, (b) apertural view, (c) basal view, (d) apical view. 27. Calliotropis arenosa nov. spec. RGM 608.273 (paratype). Locality AndaDeVos. (a) rear view, (b) apertural view, (c) basal view, (d) apical view. 28. Calliotropis arenosa nov. spec. RGM 608.274 (paratype). Locality Anda 3. (a) rear view, (b) apertural view, (c) apical view. 29. Calliotropis arenosa nov. spec. RGM 608.275 (paratype). Locality AndaDeVos. SEM detail of protoconch. 30. Calliotropis cf. pyramoeides Vilvens, 2007. RGM 608.281. Locality Anda 2. (a) rear view, (b) apertural view, (c) basal view, (d) apical view. 31. Calliotropis cf. pyramoeides Vilvens, 2007. RGM 608.282. Locality Anda 2. (a) rear view, (b) apertural view, (c) basal view, (d) apical view. 32. Calliotropis cf. pyramoeides Vilvens, 2007. RGM 608.283. Locality Anda 1. (a) SEM, side view, (b) SEM detail of protoconch.