Family: Pseudostome terminal, of variable shape.
Genus: Pseudostome lacks lobed collar; test round or oval in cross-section; pseudostome relatively large, with or lacking a collar (Illustrated Guide, 1985).
Species: 220-300 μm long; 50-60 μm diam.; test, outline like dagger, nearly cylindroid; pseudostome nearly as wide as test, 30-40 μm, no neck, no collar (Illustrated Guide, 1985).

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D. scalpellum 204 x 56 μm L/W=3.6 Uruguay, 1999

D. scalpellum 185 x 44 μm L/W=4.2 Japan, 1998

D. scalpellum 225 x 55 μm L/W=4.1 Aizu Recreation p. Aizuwakamatsu Fukushima, 2005

D. scalpellum 185 x 45 μm L/W= Omine-numa 5 Minakami Gunma, 2008

Similar species >> D. acuminata; D. claviformis; D. bacillifera;

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