FIGURE 1 A in The identity of the exotic Pterygoplichthys sailfin catfishes in Sri Lanka (Teleostei Loricariidae)

FIGURE 1 A, Variations in ventral color patterns of the Pterygoplichthys species. 1, holotype of Pterygoplichthys disjunctivus, MZUSP 28360, with ventral vermiculations; 2–4, individuals identified as P. disjunctivus morphotype in Sri Lanka; 5–9, individuals identified as intermediate morphotypes; 10–11, individuals identified as P. pardalis morphotype; 12, holotype of P. pardalis, MNHN A-9574 with discrete ventral spots. Photographs 1 and 12 are courtesy of Michel Donato Gianeti and Malclyne Hautecoeur, respectively. B, Distribution of Pterygoplichthys species in Sri Lanka. Black lines represent basin boundaries. C, Median-joining haplotype network for Pterygoplichthys samples based on the 452 bp fragment of the 16S-rRNA gene. Sizes of circles correspond to the number of individuals sharing a given haplotype. Number of mutational steps are indicated by hatch-marks along the edges. D, Factor scores of PC1 vs PC2 of the Principal Component Analysis of species identified as P. disjunctivus morphotype (black circle, n=12), P. pardalis morphotype (white circle, n=5) and intermediate morphotype (white square, n=11) based on 13 external measurements.