Interference contrast micrographs of Thermiphione rapanui sp. n. parapodia, (paratype SIO-BIC A7969). Scale bars in A–D represent 0.5 mm, and scale bars in E–L represent 0.1 mm. A Right parapodium 1 B Right parapodium 2 C Right parapodium 13 D Right parapodium 25 E Enlarged view of ventral cirrus (parapodium 2) F Feathered notochaetae (parapodium 2) G Chaetae of parapodium 25 H Notochaetae of right parapodium 2. I Slightly hooked neurochaetae (right parapodium 25) J Feathered notochaetae of parapodium 25 K Simple neurochaetae (some slightly hooked) from right parapodium 13. L Feathered notochaetae from right parapodium 13.