ever be omnivorous,
since a similar Pacific Coast species is
known to stun prey with the violent snapping of a specialized
claw, hence the name, “pistol shrimp."
It is difficult to
conceive how, living encased in a cylinder of highly enmeshed
fllaments of algae, it could feed on anything larger than very
small plankton,
if that,
in addition to the algae.
The simi-
larity of the specific activities found in the viscera of the
shrimp and in the algae,
as
shown below,
indicate the effect
of food habit upon the radioactivity of the digestive tract.
Rigili
d/m/g wet
Shrimp
muscle
viscera
Algae
Runit
a/m/g wet '
15,000
7,000
110,000
31,000
210,000
36,000
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