On 9 April 2012 the second author collected the nudibranch Cuthona caerulea in the western part of the Oosterschelde, province of Zeeland. This was the first record of this species on the Dutch coast.

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Spirula

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Nederlandse Malacologische Vereniging

P.H. van Bragt, & E. Verstraete. (2012). Eerste vondst van de Hemelsblauwe knotsslak Cuthona caerulea (Montagu, 1804). Spirula, 388, 168–168.