Fig. 5

Scatterplots of the PC1 and PC2 (A) and PC2 and PC3 (B) based on 24 morphometric measurements among the six clades (or putative species) of the LCC. Distinct colors indicate different species or clades, brown: Coastal river Clade (L. brachycephala); green: Han-Jiang Clade I (L. aff. citrauratea HJ); orange: MCJ lowland Clade (L. citrauatea); purple: MCJ montane Clade (L. micra); yellow: Huai-He Clade (L. aff. citrauratea HH); and red: Han-Jiang Clade II (L. hansuiensis). Caudal-peduncle length and caudal-fin shape at extreme values of the PC2 axis are shown in B