Quantcast Table 4-4 Comparison of Characteristics of Marine Borers

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search

Limnoria (Gribbles)
Teredo (Shipworms) Bankia (Shipworms)
Martesia (Pholads)
see Limnoria
louse like
clam like
worm like
see Teredo
length 3/8-1/2 in.
length 1/8-1/4 in.
length 2 1/2 in.
Borer size
length 1-2 ft.
length 5-6 ft.
width 1/4 in.
1/3 as wide
diameter 1 in.
diameter 1/2 in.
diameter 7/8 in
Burrows typically
Surface severely
Entrance hole 1/4"
entrance hole 1/16"
see Teredo
1/4 in. in diameter
honeycombed, early-
diameter; damage close
diameter; surface
and about 3 times
wood preferred; holes
to surface; 2-2 1/2 in.
damage minimal;
as deep, and
1/6 in. diameter by
deep and 1 in. in
subsurface severely
perpendicular to
1/2 in. deep; wave
honeycombed; holes
the surface.
action erodes pile
lined with shelly
surface to hourglass
calcareous deposits
Area commonly
see Limnoria
between half and low
mud line
see Teredo
tide, mud line


Privacy Statement - Copyright Information. - Contact Us

Integrated Publishing, Inc.