New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong Author Yiu, Sam King Fung 0000-0001-6212-7339 School of Biological Sciences, The University of Hong Kong, Hong Kong, China. cyclesamyiu @ hotmail. com; https: // orcid. org / 0000 - 0001 - 6212 - 7339 cyclesamyiu@hotmail.com Author Mah, Christopher L. 0000-0001-6212-7339 School of Biological Sciences, The University of Hong Kong, Hong Kong, China. cyclesamyiu @ hotmail. com; https: // orcid. org / 0000 - 0001 - 6212 - 7339 & Department of Invertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington D. C. brisinga @ gmail. com; https: // orcid. org / 0000 - 0002 - 0178 - 8237 & School of Biological Sciences, The University of Hong Kong, Hong Kong, China. cyclesamyiu @ hotmail. com; https: // orcid. org / 0000 - 0001 - 6212 - 7339 cyclesamyiu@hotmail.com text Zootaxa 2024 2024-10-22 5526 1 1 69 http://dx.doi.org/10.11646/zootaxa.5526.1.1 journal article 10.11646/zootaxa.5526.1.1 1175-5334 14021526 987FAD00-32A7-4E38-AFAD-6EAC8D808FB2 Brissus latecarinatus (Leske 1788) FIGURE 18A–D FIGURE 18. Brissus latecarinatus dried test. A. Aboral surface. B. Oral surface. C–D. Lateral views. Comments This species is abundant in Hong Kong waters, particularly in sheltered and coral habitats, where its skeleton can easily be found on the seabed. Denuded tests of this species have been collected from Xisha Island but the species is considered “scarce” in Southern China ( Liao & Clark 1995 ). Chao (2000) documented this species from Taiwan . Jespersen et al . (2004) reported three new species and two new genera of galeommatoid bivalves living commensally on the periproct of this species in Thailand . Occurrence/Distribution Hong Kong , 1–20 m . Outside Hong Kong . Taiwan , Ryukyu Islands , southern Japan , Hawaiian Islands , Easter Island , Costa Rica (Pacific) to the Red Sea and Mauritius through the Malaysian Archipelago and the Marquesas and Andaman Islands , and in Australia from the northeast to Ningaloo Reef on the west coast to the Arabian Sea , East Africa. 0–45 m .