Cylichna ? sp. B

Figs 35 W–Y

2014 Cylichna sp. B Hansen & Surlyk: tab. 3.

Material. MGUH 33321, MGUH 33322 and two incomplete moulds with informal sample numbers SR.784.A–B and SR.990.B–C, all from the collections of the Natural History Museum of Denmark.

Occurrence. Lithified top of the Maastrichtian Højerup Member at Rødvig, Harvig and Stevns Fyr, Stevns Klint.

Description. Shell involute, bulbous ovoid with small, shallow spire pit not showing more than latest whorl. Aperture moderately narrow, higher than penultimate whorl. No columellar folds are present on juvenile specimen MGUH 33322. Teleoconch sculpture absent.

Measurements. Largest shell, MGUH 33321, 3.7 mm high and 2.4 mm wide.

Remarks. This taxon is distinguished from the other Danish cylichniid boundary taxa by the bulbous shell, which may not have a columellar fold. The lack of a columellar fold may, though, be due to the undeveloped juvenile condition of the studied specimen.