Lopheliella, Hoffman, Van Heugten, and Lavaleye, 2008

Kiel, Steffen, Aguilar, Yolanda M. & Kase, Tomoki, 2020, Mollusks from Pliocene and Pleistocene seep deposits in Leyte, Philippines, Acta Palaeontologica Polonica 65 (3), pp. 589-627 : 617

Lopheliella ? sp.

Fig. 29E .

Material.— One specimen from the Pliocene of Liog-Liog Point : NMNS PM 28442 (W = 1.0 mm, H = 1.1 mm) .

Remarks.—This tiny specimen resembles Lopheliella rockallensis in its overall egg-shape with rather straight-sided whorls. However, it bears a distinct ridge along the umbilical chink, which is more pronounced than in any known species of Lopheliella ( Hoffman et al. 2008, 2018).

Figures

Fig. 29. Neomphaline and Vetigastopoda from late Pliocene (A–F, Liog-Liog Point) and Pleistocene (G, Antipolo Point) seep deposit in Leyte, Philippines. A–C. The neomphalid Retiskenea sp. A. NMNS PM 28435, in apical (A1) and apertural (A2) views. B. NMNS PM 28436, apertural view. C. NMNS PM 28437, apertural view. D. The neomphalid Planorbidella sp., NMNS PM 28438, in apical (D1) and apertural (D2) views, and close-up on protoconch (D3). E. Lopheliella? sp., NMNS PM 28442, apertural view, note umbilical slit bordered by distinct ridge. F. The skeneid vetigastropod Dillwynella sp., NMNS PM 28441, apical view. G. The trochoid vetigastropod Solariella sp., NMNS PM 28443, apical view.