Southward (1975) noted that the specimens identified as Chthamalus fragilis in Nilsson-Cantell (1933) are misidentified and belong to the species Chthamalus angustitergum or Chthamalus bisinuatus.
Chthamalus angustitergum
Classification
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Chthamalidae
[family]
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angustitergum
[species]
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