Zhè zhǒng lèisānjiǎobàng shì dànshuǐ zhēnzhū yǎngzhí de zhòngyào bàngzhǒng.
This triangle-shell mussel is an important species for freshwater pearl farming.
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usage
类 here means 'group/-like'. The label is informal taxonomy: any Chinese freshwater mussel whose shell profile is triangular — Hyriopsis cumingii (三角帆蚌) and relatives that underpin the country's huge freshwater pearl industry.
