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Cano Cuchima (Rio Cusimi), ca 20 mi upstream from junction of Rio Caura - Rio Erebato (Entre Rios).

White River, below lock & dam no. 1, Batesville.

West Island; 1.5-3 km E of N end of island.

Holston River (in area known as Smith Bend), just SE of U.S.Hwy. 11 W at Church Hill.

New Providence Island, reef off Cave Point, and/or Rose Island, N shore at E end.

Savannah River: transect across river at Ring Jaw Point, between mile 134.7 and 134.1.

North fork Ninnescah River; Sec. 28 & 33, T27 S, R4W on U.S. 54 about 4 miles West Garden Plain.

Susquehanna River 1.2 km upstream from Pa. Rt. 309 at Tunkhannock.

Jolo.

Vicinity Iquitos, left bank Rio Amazonas (Maranon) due S of Isla Iquitos, Sta. 5.

'Boiler' reef SW of Gurnet Rock.

Pequea Creek, tributary Susquehanna River, Paradise.

Sping Creek

Skippack Creek (Perkiomen Creek-Schuylkill- Delaware Dr.), braid upstream of Arcola Rd., Lower Providence Township, just east of Arcola.

Manatawny Creek 0.5 miles above Glasgow Road; Pottstown

Silver Creek

Pamanzi Is.;eel grass bed & rocky shore on Pamanzireef at SW end of Island.

Potomac River, ca. 1 mi above Point of Rocks.

Neches River, WSW of Jacksonville.

Off Jacksonville.

E side of Potomac River, btwn 0.5-0.6 mi.SE of US Hwy.301 bridge, same distance N of Lower Cedar Pt.

Lucea.

rio Xingu (middle Volta Grande), along right bank of right-most braid, ca. 46 km south-southeast Altamira.

Rio Santana on road from Teófilo Otoni to Carlos Chagas (BR418) ca. 22km E of Teófilo Otoni.

Chesapeake Bay.

Cano Guanoco.

2 mi N of North East Breakers.

Codorus Creek; Rt. 182 bridge, below Indian Rock Dam & confluence with South Branch Codorus Creek*

Little Manatawny Creek tributary (Schuylkill River basin)

Chester River, immediately downstream from mouth of Morgan Creek, ca.2 mi. NE of Chestertown; Chestertown Quadrangle.

Off N Florida.

Rio Orinoco Basin: Las Majadas; L. El Potrero.

NE side of island, offshore between Rum Point and Northside Village.

Savannah River; Upper Three Runs just below Route 28 crossing.

W side of Potomac River, ca 2 mi NNW of span of US Hwy 301 bridge,& 1 mi NW of Persimmon Point.

Challenger Bank.

Rio Acarai (Xingu Dr.), upstream from confluence with R. Xingu and Porto de Moz; blackwater river type.

Marshes on both sides of road from Ayolas to main Asunción/Encarnación highway (Ruta 1), 200 m south of km 18/A276.

NW of 'Eastern Blue Cut'.

Batu Sangkar, Tamah Datar, Padangsche Bovenland; elevation 1500-3000 ft.

rio Xingu, main channel (Canal do Gavião), ca. 4 km upstream of mouth of rio Iriri.

Big Sugar Creek

Brook River.

New Providence Island; tide pools along shore at and near East Point.

White River, ca. 1.6 miles NE Rosie.

Both sides of Patuxent River,ca 2.5 mi NNW of Lower Marlboro.

Morelia, Rio Caquetá Drainage

South Fork Holston River (both banks), 6 km southeast of Kingsport, Station 2.

Long Cane Creek at wooden bridge crossing near site of former Abbeville pumping station, from 80 m downstream from bridge to nearly 220 m upstream from stream crossing, 20 m upstream from an old water intake for city of Abbeville; SSW of city of Abbeville

The middle (about one-third) of the area below the Key Bridge. Most of the area is south of the shipping channel, but a small area north of the dredged channel is included. Coordinates for a point about centered in the polygon.