East coast of Florida (new record). North Carolina, and Bermuda. Coarse sands, 4.5-17 m depth. [details]

Belize and both coasts of Florida. Subtidal sands, 0.5-11 m depth. [details]

North Carolina and both coasts of Florida. Coarse sands, 3-11 m depth. [details]

Known only from off Hutchinson Island, east coast of Florida. Shell hash, 10-11 m depth. [details]

Known only from off Hutchinson Island, east coast of Florida. Shell hash, 10-11 m depth. [details]

Both coasts of Florida (new records). North Carolina, New Jersey, and Bermuda. Subtidal sands, 6.5-130 m depth. [details]

Known only from off Hutchinson Island, east coast of Florida. Shell hash, 10-12 m depth. [details]

Both coasts of Florida (new record from Gulfcoast). North Carolina, Virginia, Bermuda, and Bahamas. Subtidal sands, ... [details]

East coast of Florida (new record). North Carolina, New Jersey, and Massachusetts. Coarse sand and gravel, 4.5-138 ... [details]

East coast of Florida (new record). North Carolina, New Jersey, Bermuda, and Galapagos Islands. Largely coarse ... [details]

Known only from off Hutchinson Island, east coast of Florida. Shell hash, 10-12 m depth. [details]

Known only from off Hutchinson Island, east coast of Florida. Coarse sediments, 10-12 m depth. [details]

Known only from off Hutchinson Island, east coast of Florida. Shell hash, about 10 m depth. [details]

Pacific coasts of British Columbia, California, and Mexico; Atlantic coast of Florida through New Jersey; Gulf ... [details]

East coast ofFlorida and Bahamas. Subtidal, generally somewhat muddy sands, down to 11 m depth. [details]

Barbados and east coast of Florida. Subtidal muds and sands, down to 21 m depth. [details]

Known only from off Hutchinson Island, east coast of Florida. Shell hash, 11 m depth. [details]

East coast of Florida and North Carolina. Very coarse sands, 5.5-11 m depth. [details]

East coast of U.S.A., from Florida to Massachusetts. Largely coarse sands, 5.5-73 m depth. [details]

Known only from the type locality, Somalia (W Indian Ocean). [details]

Known only from off Hutchinson Island, east coast of Florida. Coarse, clean or somewhat muddy, sands, 10-11 m depth. [details]

East coast of the U.S.A., from Florida to New Jersey. Largely coarse sands, 3-15.5 m depth. [details]

Known only from off Hutchinson Island, east coast of Florida. Coarse, clean or somewhat muddy, sands, 10-11.5 m depth. [details]

The species name formosus is Latin for "finely formed, beautiful"; here primarily referring to the penial setae, ... [details]

The species name ingens is Latin for "huge, enormous." refering ot its large size. [details]

This species has very large prostate glands; hence the name macroprostatus. [details]

The species name corpulentus, which is Latin for "stout, corpulent," refers to the shape of the fixed specimens. [details]

The specific name hispidus is Latin for "shaggy, rough" and alludes to the appearance of the worm with regard to ... [details]

This species is named for Mr. Thomas H. Perkins (FDNR=Florida Department of Natural Resources Bureau of Marine Research) [details]

The species name latus is Latin for "broad, wide," and refers here to the flattened shape of the worm. [details]

The specific name hirsutus is Latin for "shaggy, bristly, rough" and alludes to the conspicuous setation. [details]

The name annulus, which is Latin for "ring," alludes to the shape of the penial sheaths in this species. [details]