FIGURE 1 in Cutting a Gordian knot of tubeworms with DNA data: the story of the Hydroides operculata - complex (Annelida, Serpulidae)

FIGURE 1. Photos of opercula of species belonging to Hydroides operculata-complex and outgroup taxa used in this study. A: Hydroides operculata from Kuwait, AM W.46604; B: Hydroides inornata from Sri Lanka, holotype NHM BMNH 1959.4.14.2; C: Hydroides basispinosa from Queensland, Australia, AM W.4064; D: Hydroides "gradata" from Queensland, Australia (synonymised here with H. basispinosa), AM W.42360; E: Hydroides presudouncinata from Spain, AM W.42072; F: Hydroides nigra from Spain, AM W.42073. Scale bars are 0.1 mm. Photos A, C–F by Eunice Wong, B by Elena Kupriyanova.