Table 1. Estimates of genetic divergence, as measured by Kimura-2-parameter distances, among the main Ligia lineages in the Hawaii Archipelago and outgroups.

	Clade A	Clade B	Clade C	Clade D	Clade E	Clade F	L. exotica	L. occidentalis	L. vitiensis
Clade A	5.88 2.15-4.39	14.52-14.81	11.85-13.79	13.57-16.74	13.96-14.63	14.36-15.96	23.77-25.04	21.17-21.18	19.76-24.54
Clade B	6.34-7.36	N/A N/A	14.22-14.87	15.14-15.81	15.75-16.65	13.04-14.39	24.11-24.11	22.96-22.96	19.08-24.54
Clade C	6.69-8.72	7.67-8.01	0.88-2.51 0.30-1.22	13.57-15.37	12.69-14.24	12.03-14.44	24.62-25.13	20.93-21.90	19.26-25.23
Clade D	7.02-7.72	5.65-6.31	4.36-5.33	0.00-1.60 0.00-0.91	10.53-12.93	12.20-13.99	23.66-24.42	23.33-23.83	20.52-26.53
Clade E	7.04-9.49	6.32-6.67	5.66-6.68	3.72-5.36	0.00-2.51 0.00-1.84	10.51-12.91	23.93-24.73	23.08-23.58	22.16-26.45
Clade F	7.74-10.22	8.39-10.17	5.66-6.68	5.36-7.72	4.07-6.40	0.18-5.30 0.00-1.85	22.17-23.02	22.12-23.60	20.47-24.57
L. exotica	14.89-16.04	16.41-16.41	12.88-13.25	14.04-14.81	14.83-15.25	15.32-16.12	N/A N/A	22.65-22.65	22.82-24.34
L. occidentalis	19.02-20.66	19.88-19.88	18.58-19.85	18.26-19.05	20.69-21.12	19.09-20.35	13.00-13.00	N/A N/A	22.65-23.32
L. vitiensis	19.05-21.90	18.37-20.20	17.77-20.59	16.01-17.77	15.19-18.55	17.92-19.16	21.20-23.90	24.02-25.24	0.30-17.89 3.06-23.02

Above matrix: COI gene distances; below matrix: 16S rDNA gene distances. Diagonal (in bold) indicate within-clade distances (upper values: COI; below: 16S rDNA).