According to Gary Gentile in his book Shipwrecks of New Jersey - South, the following three vessels and four known wrecks may be related as suggested here. Or it could be something else entirely.
The "Glory Wreck" is a twisted mass of hull plates and steel spread over a wide area on a sandy bottom. Artifacts are occasionally found: portholes and brass. She is usually a good lobster wreck.
Lumped together here are what might be considered to be "normal" aquatic crabs. There are many other similar types. The claws of many crabs are good eating - break one off and let the crab go, it will grow a new one. Never take both - you'll kill it.