Translation of "Weekdieren" in English

Alle weekdieren die ze vangt zijn makkelijk te vangen... ...maar ze hebben harde schelpen.

All the mollusks she is capturing, they're quite easy to catch, but they've got these incredibly hard shells.

Sommige van deze weekdieren ontspannen alleen... ...als die boor precies in de top van de schaal zit... ...op de abductor.

But some of these mollusks will only relax if that drill is precisely in the apex of the shell, on the abductor muscle.