Pacific: Gulf of California
Mexico
Sonora
Punta San Guillermo
18Jan1951
afternoon
27º55.9’N - 111º03.5’W
27.932, -111.058
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to 6ft
6ft
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UCLA W51-10
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Derris
BW Walker & party
-
-
rocky, Cover: crevasses, Shore: rocky
sparse, coralline ? algae
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low