Figure 1 in New records of non-indigenous Branchiomma and Parasabella species (Sabellidae: Annelida) in South Australia highlight the continuing challenges for sabellid taxonomy

Figure 1. Idealised drawings of morphological features showing measurements taken for species comparison. (a) chaeta (A, shaft width; B, hood maximum width; C, hood total length). (b) uncini (D, length of main fang; E, length of neck; F, breast length; G, distance of breast to main fang; H, length of handle).