Alterbia raijae, (Kjellström, 1973, p.20-22, fig.16), Lentin and Williams, 1976, p. 50.

Combination illegitimate: the generic name Alterbia is illegitimate
NOW Manumiella. Originally Deflandrea, subsequently Alterbia (combination illegitimate), thirdly Eurydinium, fourthly (and now) Manumiella.

Holotype: Kjellström, 1973, fig.16
Locus typicus: Höllviken Borehole No. 1, Scania, Sweden
Stratum typicum: Middle Maastrichtian

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Original description as Deflandrea raijae: [Kjellström, 1973, p. 20]:

Diagnosis:
Deflandrea with pentagonal, granular theca. Truncate apical horn and antapical horns.
Psilate, pentagonal inner central capsule, the margins of which extend to the central part of the theca.
Well-defined cingulum with margins bulging outwards.
Archaeopyle intercalary.

Dimensions:
Length of theca: 70 µm; breadth of theca: 65 µm.