Site #8 has a 70' tugboat "Golden Eagle". Site #6 has a 120' barge. Site #1 has a 40' pilot boat. Other than that, the Delaware Bay reefs are all concrete rubble.
John S Dempster Jr. is sister to Shearwater and Reedville, see those vessels for details, links in the sidebar. All three vessels were originally small Army transports, converted to Menhaden fishing by Omega Protein company. FS-355 was USCG-manned, and retained by USA as PVT Carl V. Sheridan (see below) until sold in 1972.
The aging Shearwater and Reedville were retired when Omega got two new modern vessels in 2017, but Dempster was kept as a reserve. Finally, almost 80 years old, the Dempster was sent to her reward as well. Another sister, Tangier Island, was reefed off Georgia in 2020. As of 2023, one old sister remains - Smuggler's Point, FS-400, launched in 1944!
The Mermaid's Purse is not an invertebrate at all - it is a fish egg capsule. The egg capsule of a skate or ray, to be precise. The "horns" are to secure the capsule in seaweed. You may find one with a baby skate growing inside, but most are empty. They are included here with bivalves because they are often found scattered around the bottom like shells, up to 3" long. They certainly don't look like fish!