Figure 4

Pictorial descriptions of relative warps axes and the morphological extremes in each damselfish trophic class. Plates A-H display pairwise comparisons of damselfishes whose head shapes are strongly separated along one RW axis, but which are otherwise very similar (they have similar scores on other axes). Plate A: Teixeirichthys jordani (RW1-). Plate B: Hypsypops rubicundus (RW1+). Plate C: Dischistodus melanotus (RW2-). Plate D: Microspathodon dorsalis (RW2+). Plate E: Plectroglyphidodon lacrymatus (RW3-). Plate F: Amphiprion akindynos (RW3+). Plate G. Chromis amboinensis (RW4-). Plate H: Neopomacentrus cyanomos (RW4+). Plate I: Azurina hirundo. Plate J: Chrysiptera cyanea. Plates B and J depict the range of variation in the head shapes of damselfish omnivores. Plates C and D depict the range of variation in the head shapes of damselfish herbivores. Plates G and I depict the range of variation in the head shapes of damselfish planktivores. _* = the posterio-dorsal tip of the ascending process of the premaxilla. + = the dorsal edge of the origin of the A2 division of the adductor mandibulae on the preopercular bone. ‡ = the dorsal edge of the origin of the A1 division of the adductor mandibulae on the preopercular bone. All scale bars = 1.0 cm.