M-720 SOUTHERN SHIPWORM, Bankia gouldi

It logs with lime-coated burrows, weakening the structure until it collapses. These highly modified, elongated clams enter the wood in their larval stages, and bore away with their tiny, white shells. They remain imprisoned, receiving nutrients by pumping and discharging water through their siphon tubes, receiving no nourishment from the wood itself. Bankia can be readily cultured in the laboratory. Per collection shipped in situ.