R package Momocs: Shape Analysis of Outlines. Momocs is intended to ease and popularize shape analysis of outlines (especially using elliptical Fourier analysis). It mostly hinges on the functions developed in Morphometrics with R (Claude, 2008). From outline extraction of images and elliptical Fourier calculation to multivariate analysis and the visualization of transformations within the morphological space, Momocs provides a complete and convenient toolkit to specialists within every field that are, or may be, interested in morphological comparisons of outlines.