Pacific wing-oysters
... that the right to gather Pacific wing-oysters in the Gulf of California was once a prerogative of the Spanish crown?
... that the right to gather <b id="mwBhE"><a href="./Pteria_sterna" id="mwBhI" rel="mw:WikiLink" title="Pteria sterna">Pacific wing-oysters</a></b> in the <a href="./Gulf_of_California" id="mwBhM" rel="mw:WikiLink" title="Gulf of California">Gulf of California</a> was once a prerogative of the <a href="./Monarchy_of_Spain" id="mwBhQ" rel="mw:WikiLink" title="Monarchy of Spain">Spanish crown</a>?