Two new species of scalpelliform barnacles (Cirripedia: Thoracica) from the Plio-Pleistocene of Cotentin, northwest France Author Carriol, René-Pierre text Zootaxa 2013 3641 1 21 30 journal article 10.11646/zootaxa.3641.1.2 2a7ba554-14c6-43ae-a049-c7b268418c4b 1175-5326 283685 5CCC816C-F35C-426B-BAF8-A9202CE04C7B 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.