In May 2005 fishermen from Ilan's Nanfang-ao Harbor pulled up an 18-centimeter Rumphius 'slit shell from the sea floor at a depth of 300 meters. After being kept in Chang Yi-hsien's Shell Museum for four months, it produced more than 10,000 semi-translucent gold eggs. It was the first time that a Rumphius' slit shell had produced eggs in an aquarium.
2005 年 5 月，台灣宜蘭南方澳漁民在 300 公尺深的海域中，捕獲一枚直徑 18 公分的龍宮貝，經張議顯的「寶貝館」養育後，產下上萬顆金黃色半透明的卵，是史上第一次在水族箱產卵的龍宮貝！