Scalpellum sp. B

Fig. 2 L

Material examined. Inventory, see Appendix 2

Measurements. MNHN.F.A46424: apex to middle of basal margin 1.3 mm

Description. Upper lateral pentagonal, width exceeding height, umbo removed from apex, scutal and tergal margins forming angle of about 90°. Tergal margin straight, shorter than concave scutal margin. Basal margin convex. One ridge extending from umbo to apex; two ridges extending one to each lateral angle; two ridges extending downwards from umbo.