Table 2.

Estimates of Average Evolutionary Divergence over Sequence Pairs within morphologically defined groups. The number of base differences per site from averaging over all sequence pairs within each group are shown. Standard error estimate(s) are shown in the last column. The analysis involved 82 nucleotide sequences. Codon positions included were 1st+2nd+3rd. All ambiguous positions were removed for each sequence pair. There were a total of 648 positions in the final dataset. Evolutionary analyses were conducted in MEGA7. The presence of n/c in the results denotes cases in which it was not possible to estimate evolutionary distances.

Species	p-dist	std_err
Eusirus holmii	0.000	0.000
Rhachotropis abyssalis	0.000	0.000
Rhachotropis aculeata	0.009	0.002
Rhachotropis aff helleri	0.050	0.005
Rhachotropis aff inflata	n/c	n/c
Rhachotropis aff palporum	0.000	0.000
Rhachotropis aff proxima	n/c	n/c
Rhachotropis cf proxima	0.002	0.001
Rhachotropis chathamensis	0.000	0.000
Rhachotropis gislii	n/c	n/c
Rhachotropis helleri	0.000	0.000
Rhachotropis inflata	0.058	0.005
Rhachotropis lomonosovi	n/c	n/c
Rhachotropis macropus	0.004	0.001
Rhachotropis novazealandica	n/c	n/c
Rhachotropis rossi	n/c	n/c
Rhachotropis sp n. B	n/c	n/c
Rhachotropis thordisae	0.011	0.003