Genomes of two indigenous clams Anomalocardia flexuosa (Linnaeus, 1767) and Meretrix petechialis (Lamarck, 1818).

Clam digging has a long history in Hong Kong, but unregulated clam digging activities depletes clam populations and threatens the ecosystem. Population genomics is useful to unravel the connectivity of clams at different geographical locations and to provide necessary conservation measures; and yet, only limited number of clams in Hong Kong have genomic resources. Here, we present chromosomal-level genome assemblies for two clams commonly found in Hong Kong, Anomalocardia flexuosa and Meretrix petechialis, using a combination of PacBio HiFi and Omni-C reads.