A Krabi, Thailand, showing O. intermedia at the overhang of an intertidal cave (indicated by white arrow). B Hey or Coral Island, Phuket, showing that O. intermedia occur on shaded rocks. C O. intermedia can occupy up to 100% cover under a shaded rock in Thailand. D Octomeris intermedia, showing partially eroded samples, with longitudinal furrows at the base of the shell plates. E O. intermedia, eroded samples, showing shell with a smooth surface. F O. intermedia, uneroded samples, showing longitudinal furrows on the surface. G O. brunnea on Lanyu, Taiwan. Shell is more conical than O. intermedia. Eroded sample with smooth shell plates.

 
 
  Part of: Chan BKK, Tsao YF, Ganmanee M (2020) Morphological and molecular evidence support the intertidal barnacle Octomeris intermedia Nilsson-Cantell, 1921 (Thoracica, Chthamalidae) as a valid species in Indo-Pacific waters. ZooKeys 914: 1-31. https://doi.org/10.3897/zookeys.914.49328