De or het parelmossel?

The correct Dutch article is:

de parelmossel

  • Plural: de parelmosselen / parelmossels
Exception Words ending in -sel usually take het, but parelmossel is an exception. See the rule
Meaning (Dutch) (tweekleppigen) tweekleppig weekdier van het geslacht Margaritifera, een in zoet water levende mossel die de rivierparels oplevert

How to use parelmossel

the parelmosselde parelmossel
this parelmosseldeze parelmossel
that parelmosseldie parelmossel
our parelmosselonze parelmossel
your parelmosseljouw parelmossel
every parelmosselelke parelmossel
which parelmossel?welke parelmossel?
a big parelmossel / the big parelmosseleen grote parelmossel, de grote parelmossel
the parelmossel (plural)de parelmosselen, deze parelmosselen

Dutch words ending in parelmossel

beekparelmossel | rivierparelmossel

In compound words, the last part decides the article. See the rule

Meaning, plural, diminutive, pronunciation and translations: WikiWoordenboek (Dutch Wiktionary) (CC BY-SA 4.0). Example sentences: Tatoeba (CC BY 2.0 FR).