Place
- Rhode Island Sound (Mass. and R.I.)3
- San Francisco (Calif.)3
- San Francisco Bay (Calif.)3
- Tennessee3
- Tomales Bay (Calif.)3
- United States. Virgin Islands3
- Santa Clara County (Calif.)2
- United States Virgin Islands2
- Alameda County (Calif.)1
- American Samoa1
- Block Island Sound (R.I.)1
- Blue Hill Bay (Me.)1
- Boston Harbor (Mass.)1
- Butte County (Calif.)1
- Cobscook Bay (Me.)1
- Contra Costa County (Calif.)1
- Frenchman Bay (Me.)1
- Guam1
- Ipswich Bay (Mass.)1
- MIssouri1