Zoosyst. Evol. 93 (1) 2017, 13–34 | DOI 10.3897/zse.93.10769 museum für naturkunde The diversity of acorn barnacles (Cirripedia, Balanomorpha) across Thailand’s coasts: The Andaman Sea and the Gulf of Thailand Ashitapol Pochai1, Sutin Kingtong1, Woranop Sukparangsi1, Salinee Khachonpisitsak1 1 Department of Biology, Faculty of Science, Burapha University, Chon Buri, Thailand http://zoobank.org/9FF0B30A-A535-48DE-B756-BD1C0DFE2B92 Corresponding author: Salinee Khachonpisitsak (
[email protected]) Abstract Received 11 October 2016 The acorn barnacle is a sessile crustacean, inhabiting the intertidal areas of tropical and Accepted 7 December 2016 temperate regions worldwide. According to current practices on Cirripedia morpholo- Published 11 January 2017 gy, shell, opercular valves, and arthropodal characters including cirri and mouthparts are used as a tool for taxonomic classification, and using these characteristics the pres- Academic editor: ent study aimed to provide better resolution for the barnacle diversity and geographical Michael Ohl distribution within coastlines of Thailand: the Andaman Sea and the Gulf of Thailand. A total of ten species belonging to three families (Chthamalidae, Tetraclitidae, and Bal- Key Words anidae) were identified in this study. Subsequently, five species were newly recorded for the first time from Thailand’s coasts: Newmanella spinosus Chan & Cheang, 2016, Eu- acorn barnacle raphia hembeli Conrad, 1837, Euraphia depressa (Poli, 1795), Tetraclita kuroshioensis Cirripedia Chan, Tsang & Chu, 2007, and Tetraclita singaporensis Chan, Tsang & Chu, 2007. The Balanomorpha others, already mentioned in previous records, include: Tetraclita squamosa (Bruguière, shell morphology 1789), Chthamalus malayensis Pilsbry, 1916, Amphibalanus amphitrite (Darwin, 1854), opercular valve Amphibalanus reticulatus (Utinomi, 1967), and Megabalanus tintinnabulum (Linnae- distribution us, 1758).