Sanguinolaria
Sanguinolaria is a genus of saltwater clams, marine bivalve mollusks in the family Psammobiidae. The genus was first described by Jean-Baptiste Lamarck in 1818. These clams are often called “blood clams” or “blood ark shells” due to the reddish color of their blood.
Common Names
Common names for species in this genus include:
- Blood clam
- Blood ark shell
- Red clam
- Sunrise clam
Characteristics
Sanguinolaria clams are characterized by their relatively large size, with some species reaching lengths of over 10 cm. They have a thin, fragile shell with a smooth, oval shape. The shell color varies depending on the species and can range from white to yellowish-brown to reddish-brown. These clams have a distinct hinge line, and the shell is often covered in a thin layer of periostracum, a protective outer coating.
Sanguinolaria clams are filter feeders, using their gills to extract food particles from the water. They are also known for their ability to burrow deep into the sediment, where they can live for several years.
Environments
Sanguinolaria clams are found in a variety of marine environments, including sandy beaches, mudflats, and coastal waters. They are typically found in areas with moderate wave action and abundant food sources.
They are an important food source for a variety of marine animals, including fish, birds, and other invertebrates. Some species are also harvested for human consumption. However, overfishing and habitat destruction have led to declines in some populations, and some species are considered to be endangered.