Surirella angusta is similar, but it lacks a craticula-like structure, has higher density of more narrow costae and differs in other details visible under SEM. Small specimens of S. arctica with a poorly developed or eroded craticula-like structure may hardly be differentiated from S. angusta.
Both S. heardensis and S. subantarctica have a craticula-like structure, but it is less robust with narrower costae. These taxa also have more rounded apices, can reach larger size, especially the valve width, and are typically constricted mid-valve. Both taxa have been confirmed only from the sub-Antarctic region.
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