Place
- Illinois3
- Kentucky3
- Mississippi3
- Missouri3
- New Mexico3
- North Carolina3
- Rhode Island Sound (Mass. and R.I.)3
- San Francisco (Calif.)3
- San Francisco Bay (Calif.)3
- South Carolina3
- Texas3
- Tomales Bay (Calif.)3
- United States Virgin Islands3
- West Virginia3
- Wisconsin3
- American Samoa2
- Guam2
- Tennessee2
- United States. Virgin Islands2
- Block Island Sound (R.I.)1