Tiny bivalve found in Brazil sheds light on tropical Atlantic biogeography

For the first time, the bivalve mollusc Guyanella clenchi has been reported from Abrolhos Bank, Brazil. This almost unknown bivalve had previously been reported solely from the Caribbean region. Apart from being the southernmost record for the species, its presence also helps the experts to determine the way the marine fauna from the Caribbean interacts with its South American relatives.

source https://www.lifetechnology.com/blogs/life-technology-news-blog/tiny-bivalve-found-in-brazil-sheds-light-on-tropical-atlantic-biogeography