Amygdalum papyrium is a member of the family Mytilidae. The fragile shell of the Atlantic paper mussel is white with a glistening, smooth periostracum (thin organic layer covering the outer layer of the shell) that is bluish green to yellow in color. The shell is elongate, compressed, and wider at the posterior end. Umbones are present near, but not at, the anterior end. The interior of the shell is iridescent white with smooth margins (Mikkelsen and Bieler 2008). A. papyrium attaches to the substratum as well as to each other with byssal threads often forming dense beds that support rich faunal and infaunal invertebrate assemblages.
- ITIS. Integrated Taxonomic Information System. Available online.
- American Museum of Natural History, Bivalves - Research, Training, and Electronic Dissemination of Data. Available online.
- Mikkelsen PM and R Bieler. 2008. Seashells of Southern Florida. Princeton University Press, Princeton, NJ. pg. 88-89.
- NOAA National Benthic Inventory. Available online.Scott PJB. 1988a. Initial settlement behavior and survivorship of Lithophaga bisculata (d'Orbigny) (Mytilidae:Lithophaginae). Journal of Molluscan Studies 54:97-108.
- Scott PJB. 1988b. Distribution, habitat and morphaology of the Caribbean coral- and rock-boring bivalve, Lithophaga bisculata (d'Orbigny) (Mytilidae:Lithophaginae). Journal of Molluscan Studies 54:83-95.
- Siddall SE. 1980. A classification of the genus Perna (Mytlidae). Bulletin of Marine Science 30:858-870.
- Walker RLT, Power RA and M Sweeney-Reeves. 2003. Observations on growth and gametogenesis of the Atlantic paper mussel, Amygdalum papyrium (Conrad 1846), from coastal Georgia. The Veliger 46:86-89.
- Zip Code Zoo. Available online.
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