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Riacho Santana (isolated stagnant pool; rio São Francisco Dr.), 3.1 km S of Bom Jesus da Lapa on road to Malhada; elevation 454 m.

New Providence Island; S shore, Malcolm's Creek, at the end of Bluehill Road.

Escambia River at junction with White River.

Rio Araçá immediately upstream from confluence with Rio Demini.

Transect across Savannah River between mile 175.1 and 174.8.

Hacienda Mozambique, Lake Mozambique, W side near N end; Meta drainage.

Loup River

Cano crossing dirt road near entrance to Hacienda Fundo Malama (Sr. Biales), ca 15 km N of Caicara-Ciudad Bolivar hwy at Sipao.

Susquehanna River, W side of river just N of bridge (Pa. Hwy 87) at North Mehoopany.

Upper Rio Amazonas Basin, purchased at Belén market, Iquitos.

Michigan.

Congaree River, 2 river mi. below junction at Lexington, ca. 10 miles SSE of Columbia.

Brandywine Creek (Delaware Dr.), 1/2 mile below US Route 1 [west of Chadds Ford].

Chemung River (trib Susquehanna).

Marshfield [probably Gasconade River system].

Arabian Sea, off India.

Off Cozumel; Yucatan Channel.

Rio Tapajós, right bank ca. 10 km northeast of Alter do Chão.

North Ireland, right Bank of River Foyle, immediately below the confluence of the River Faughan.

Transect across Savannah River at mi 150.5, ca.2 mi.below Cunningham Point and ca.1 mi.above Catfish Hole Point.

ullpa caño, ca. 1 km above its confluence with Moena caño at 3°46'19''S 73°14'16'' W.

Wateree River

North Island; Bay of Islands, Cape Brett, at the tip of the cape, in rocks, weed and sand.

Niobrara River

Gulf of Tunis.

Delaware River; vicinity of Pea Patch Island, just above Chesapeake & Delaware Canal entrance near Delaware City.

Caribbean Sea, off Venezuela.

Rio Solimoes (Amazonas Dr.), 9.5 km upriver of Sao Antonio do Ica, 38.1 km downriver of Gr. Rural Muiraquita.

Susquehanna River, both sides near W end of Vosberg (Lehigh Valley) RR tunnel between Mehoopany & Tunkhannock; Susquehanna River sta. 2.

Curtis Creek and Middle Branch. The area is defined to exclude most of the deeper, dredged channel area. This zone is almost discontinuous; Middle Branch, Patapsco River

rio Xingu, beach on right bank, campsite 5 and vicinity, ca. 3.5 km southeast of Porto do Moz

Rangiroa.

Rio Ventuari from ca. 10-12 km above confluence with Rio Orinoco.

Guadalupe River, just below DuPont pump house at Victoria.

Pompton River at Pompton Plains.

Small stream at Missões, trib. of Rio Itacarambi.

Río Paru, left-bank trib Ventuari (Orinoco Dr.), 164 km east-northeast of San Fernando de Atabapo

Ottawa River; 3 mi NW of Calida, just W. of Route 114, ca 5 mi. above junction with Auglaise River.

W. shore of Chesapeake Bay, just SE of Long Beach.

North Inlet; Old Man Creek.

Río Ventuari (Orinoco Dr.), Isla de Canaripo, 192.7 km SE of Puerto Ayacucho

Horse Creek, direct trib South Fork Holston River, Station HC1.

Bahama Islands.

White River ca. 2 miles upstream from Oil Trough.

Rio Cariapo, just above and below bridge on Caicara - Ciudad Bolivar hwy.

Río Ventuari (Orinoco Dr.), coarse sand beach along left bank just downstream of extensive, rocky rapids extending ca. 1 km below Salto Tencua

Oahu.

Cumberland River, about 1.5 mi below Old Hickory Dam,about 0.25 mi upstream from mouth of Dry Creek*

Rio Orinoco (Atlantic Dr.), beach near Puerto Ayacucho.

North Inlet, Crabhaul Creek.