Figure S2 from Clownfishes evolution below and above the species level

Description of the five morphological traits used in the study. Each trait is described according to the landmarks on the picture. Body ratio: The body ratio was calculated by dividing the standard length (distance between the snout (1) and the base of the tail, which is exactly between (8) and (9)) by the body depth (segment between the base of the pelvic fin (11) and the base of the spinous dorsal fin (6)). Head ratio: The head ratio represents the standard length divided by the head length (distance between the snout (1) and the origin of the opercular (12)). Peduncle factor: The peduncle depth factor was calculated by dividing the body depth by the caudal peduncle depth (distance between the posterior end of the dorsal fin base (7) and the posterior end of the anal fin base (10)). Eye height ratio: The eye height ratio is the ratio between the body depth and the eye height, which is the distance between the center of the eye (center of gravity of (2, 3, 4, 5)) and the point where the line parallel to the body depth (passing through the center of the eye) meets the line parallel to the standard length (passing through (11)). Snout angle: The snout angle is the angle calculated between the standard length and the line that passes through the snout tip (1) and the base of the spinous dorsal fin (6)).