Ecological aspects of two wood-boring molluscs from the continental terrace off Oregon. . ecologicalaspect00tipp Year: 1968 93 5 -b 5 i^ 0 CEDAR OAK ▲. ^,^f^r\ A 200 400 600 800 Depf/t of exposure (meters) 1000 Figure 39. Average depth of maxlniam penetration versus depth of exposure for 30 days. 8 I- <: 5 2- .CEDAR

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