Bearss limes, which are also known as Persian limes or Tahiti limes, are what most of us think of simply as "limes." Don't think these look like the limes sold at your supermarket? That's because Bearss limes are commonly harvested and sold when still completely green. When allowed to ripen, however, they turn noticeably lighter and even full-on yellow as shown here.
Guess what else happens when Bearss limes ripen on the tree? They get juicy. Way juicier than the under-ripe limes you might be used to. Use them as you would any lime, but with all that juice and flavor, you can also use them where you might normally use lemons. Need specific ideas? Try one of these: