Arcidae May 2026

The family holds significant value both as a resource and as a subject of ecological study.

: Common genera include Anadara (often called blood cockles due to the presence of hemoglobin), Arca , and Barbatia . Morphological and Biological Characteristics arcidae

: Though rare, some species are found at abyssal depths and in polar seas. The family holds significant value both as a

: 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. : Unlike most mollusks, Arcidae often contain hemoglobin

Ark shells are distinguished by several unique biological features that allow them to thrive in varied benthic environments:

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.