Eocypraea batequensis, GROVES, 2011

Groves, Lindsey & Squires, Richard L., 2023, Revision of northeast Pacific Paleogene cypraeoidean gastropods, including recognition of three new species: implications for paleobiogeographic distribution and faunal turnover, PaleoBios 40 (10), pp. 1-52 : 23

EOCYPRAEA BATEQUENSIS GROVES, 2011

FIGS. 7D–F

Eocypraea ? sp. Squires and Demetrion, 1992. p. 31, figs. 77–79.

Eocypraea (Eocypraea) n. sp. 1. Groves, 1997. p. 8 [as E. (E.) n. sp. 1].

Eocypraea (Eocypraea) batequensis Groves, 2011 . p. 46 (table 1), 49, figs. 5, 6.

Grovesia batequensis (Groves) . Fehse, 2021. p. 44.

Holotype and Type Locality— IGM 5174 (Figs.7D–F), length 9.4 mm, width 6.5 mm, height 5.1 mm. LACMIP Locality 16951 [ex CSUN Locality 1220b], Bateque Formation, Mesa La Salina, Baja California Sur, México ( Squires and Demetrion, 1992).

Occurrence— Lower Eocene. “Capay Stage,” Baja California Sur, México.

Etymology— Originally named for the Eocene Bateque Formation, Baja California Sur, México.

Description— Shell small in size. Shell ovate, smooth, dorsal moderately inflated with central area flat. Spire covered. Aperture gently curved and moderately wide, opening anteriorly; denticulation well developed on both sides of aperture. Labial lip (outer lip) with ap- proximately 30 teeth,strongest ones on central part of lip. Columellar lip (outer lip) with approximately 20 teeth, becoming smaller toward exhalant canal (posterior ca- nal). Labial lip teeth slighty stronger than columellar lip teeth. Terminal ridge present on left side of columellar lip. Anterior end of shell slightly flattened out and projecting short distance. Posterior end of shell not projecting. Bor- der on basal lateral margin of shell (Groves 2011: p. 49).

Remarks— Eocypraea batequensis is known only from its holotype.