Figure 24. A–J, Hydroides trihamulatus n in Descriptions of New Serpulid Polychaetes from the Kimberleys of Australia and Discussion of Australian and Indo-West Pacific Species of Spirobranchus and Superficially Similar Taxa

Figure 24. A–J, Hydroides trihamulatus n.sp. (A,B) anterior and posterior parts of tube of a juvenile specimen; (C) worm, showing operculum, operculum, pinnule-free tips of radioles and arrangement of anterior abdominal tori; D–F, from another somewhat older specimen: (D) anterior end of worm, showing operculum, its well-formed main coronal spine, and remaining coronal spines and infundibular spines with simple pointed tips; (E) tube with worm in situ; (F) operculum showing somewhat swollen processes; (G) operculum of still older specimen showing well-formed main coronal spine and remaining coronal and infundibular spines with T-shaped tipas.