Table 3. The mean number of tentacles ± standard deviation and results of Mann–Whitney U test with Bonferroni correction between each Palythoa species pairs. N = total number of examined polyps for each species (one per colony).

Species	P. tuberculosa	P. sp. yoron	P. mutuki	P. aff. mutuki
		Mann–Whitney U test
P. tuberculosa	31.6 ± 3.4 (N = 11)	<0.001	<0.001	<0.001
P. sp. yoron		40.5 ± 2.56 (N = 8)	<0.001	<0.001
P. mutuki			54.4 ± 7.43 (N = 7)	<0.001
P. aff. mutuki				71 ± 4.14 (N = 8)