Compare Discostella pseudostelligera

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Discostella stelligera is larger in size, has coarser radial striae and lacks conspicuous extensions of the marginal fultoportulae. Discostella glomerata differs in the marginal fultoportuae, which are present between almost every costa (Houk and Klee 2007). Discostella stelligeroides has a sparse ring of fultoportulae that lack outer projections. Discostella woltereckii has a stalked rimoportulae, in contrast to the flat rimoportula of D. pseudostelligera. Small specimens may be indistinguishable from D. lakuskarluki, a taxon that appears to be restricted to low nutrient, high latitude lakes.