Fig. 2

Intraspecific coefficient of variation for the morphological traits of Branchiostoma malayanum; the number of myotomes anterior to the ventral pore (NMAVP), between the ventral pore and the anus (NMVPA), and posterior to the anus (NMPA), the total number of myotomes (TNM) and the number of fin chambers in the dorsal and preanal regions (NFCD, NFCP), total length (TL), body height (BH), caudal fin height (CFH), rostral fin length (RFL), and rostral fin height (RFH) the lengths of the segments anterior to the ventral pore (LSAVP), from the ventral pore to the anus (LVPA), and posterior to the anus (LPA) the lengths of the upper and lower lobes of the caudal fin (LUCF and LLCF).