Figure 3.

(a) Three-dimensional-morphospace of damselfishes made by principal components of each studied unit (body, mandible and premaxilla). The species lacking the ceratomandibular (cmd) ligament are highlighted in blue and the species having the ceratomandibular ligament are in red. The principal components (PCs) used to produce this morphospace are those revealing the greatest differences between both morphological groups. The percentage of shape variance summarized by each PC are given in brackets. (b) Deformation grids illustrating the shape variation between the zooplanktivorous species having the cmd ligament (black dot) and the ones lacking this ligament (extremity of the vector) for every studied unit. The shape differences have been exaggerated for better visualization (overall body: x2, mandible: x1.7, premaxilla: x1.2).