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Cape May, Schelengers' Landing

Buzzard's Bay, Woods Hole, MA

Boulder Creek, CO

Bailey's Island, Casco Bay, ME

San Marcos River, near San Marcos, TX

Wachapreague

Bangor

Station 184 Great Sound

Green River, Station 4LB

Cher.

First spring south of Triangle Spring, Death Valley

near Baquel

1.5 mi SW of Adelina, Patuxent River, on Sheridan Point

Eureka, California.

White River Station 1:

near Davis

along Rio Nexapa, near Huachinango

Old Hickory. Cumberland River, right bank, approx 1.5 mi below Hills Island.

1 mi S of Nottingham. Patuxent River, right bank, ca. 1.5 mi upstream from White's Landing and 1.5 mi downstream from Nottingham.

1 mi S of Nottingham. Patuxent River, left bank, ca. 1.5 mi upstream from White's Landing and 1.5 mi downstream from Nottingham.

Bankura, India.

Drifting near Fort Taylor, Key West

Spot Pond Brook, near Fells Station, Melrose

Gila Hot Springs. 41 miles N of Silver City, NM.

Fajardo, Bahia de Yeguas

Damiere's Landing. Savannah River, at Mile 160.7 (formerly Mile 175). Included all of the pilings (#78) on the left bank and the opposite area on the right bank.

Ca. 3.2 km (2 mi) S of Reed. Richland Slough from downstream side of the crossing of Bluff City Road to a point about 100m upstream from the bridge, about 1.6km upstream from the confluence of the Green River and Richland Slough.

Johnson's Landing. Savannah River (beaches of both banks) above Ring Jaw Point at Mile 123.1 (formerly Mile 134.5).

Yellow Mill Pond, Bridgeport

Sydney, New South Wales, Australia

Lake Waiau, Mauna Kea, Island of Hawaii

Cwm Idwal

Sand Springs

Eisenach: In einem kleinen Sumpf bei Mosbach

Culture of algae in the Botanical laboratory, University of California, Berkeley

In Benton's Hot Spring near Partzwick, in the northern part of Owen's Valley

Escambia River Survey Station 5, left bank, Escambia River

Villa Adriana, Tivoli, Roma, Italy.

Hunt's Brook, Station 4

Mats-Mats Bay, San Juan Island, WA

0.75 mi S, 17-18 degrees W of Seguin, Guadalupe River, well above plant at Victoria.

0.75 mi S. 17-18 degrees W of Seguin. Guadalupe River, well above at Victoria.

Port Philip, Victoria, Australia

Ture Point, left bank of Lough Foyle, Station 1

Guayanilla: Ventana

Indian River Inlet

west coast of Whidbey Island, WA

Maunabo, Punta Tuna

Long I. Sound, New Haven

Southwest Channel