  We explore shapes of clusters and superclusters in the IRAS 1.2 Jy redshift
survey with three reconstructions spanning the range \beta = 0.1, 0.5, 1.0,
where \beta = \Omega^{0.6}/b, b is the bias factor and \Omega the present value
of the dimensionless matter density. Comparing our results to Gaussian
randomized reconstructions of the IRAS catalogue, we find structures having
both planar and filamentary properties. For \beta = 0.5, 1.0 the largest
structures in the survey have a distinct tendency to be filament-like} in
general agreement with the results of N-body simulations.
