: Many species possess numerous small pallial eyes along their mantle margin, particularly on the posterior side, providing light sensitivity. Lifestyles : They exhibit two main ecological habits:
Complete mitochondrial genome of Anadara vellicata (Bivalvia arcidae
: A long, straight hinge line with numerous small teeth. : Many species possess numerous small pallial eyes
: Unlike most mollusks, Arcidae often contain hemoglobin in their hemocoel, giving them a red-colored body and the name "blood cockles". This adaptation may aid survival in low-oxygen environments like mud. particularly on the posterior side
Arcidae belongs to the superfamily within the order Arcoida . It is a highly species-rich family, with a conservative estimate of over 300 extant species worldwide.