  Consider a deformable body immersed in an incompressible liquid that is
randomly stirred. Sticking to physical situations in which the body departs
only slightly from its spherical shape, we investigate the motion of the body,
calculate its mean squared displacement for a correlation function of general
form and consider several usefull families of correlation functions. We also
consider, in detail, the case of thermal agitation and the validity of the
small deformation approximation.
