No Pacific Ocean
Mexico
Tres Marias Islands
SE side of Maria Madre Island
15Aug1961
0830
21°33.6'N - 106°31.0'W
21.560, -106.517
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0-25 ft
to 25 ft
B6108
19
RV Black Douglas
rotenone, diving, dipnets
D Dockins, P Sloan, R Kiwala, D Meyer, D Wroncy
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Large coral covered boulders
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