An examination of introgression and incomplete lineage sorting among three closely related species of chocolate‐dipped damselfish (genus: Chromis )

For support in Socotra, we thank the Ministry of Water and Environment of Yemen, staff at the Environment Protection Authority (EPA) Socotra, and especially Salah Saeed Ahmed, Fouad Naseeb and Thabet Abdullah Khamis, as well as Ahmed Issa Ali Affrar from Socotra Specialist Tour for handling general logistics. For logistic support elsewhere, we thank Eric Mason at Dream Divers, the Coastal and Marine Resources Core Lab and Amr Gusti from KAUST, the Administration of the British Indian Ocean Territory, as well as the University of Milano-Bicocca Marine Research and High Education Centre in Magoodhoo, the Republic of Maldives' Ministry of Fisheries and Agriculture, and the community of Maghoodhoo, Faafu Atoll. We thank the Bioscience Core Laboratory at KAUST for their assistance with Sanger sequencing. We also acknowledge important contributions from Tane Sinclair-Taylor and Jean-Francois Flot for useful discussions and/or assistance with figures. This research was supported by the KAUST Office of Competitive Research Funds (OCRF) under Award No. CRG-1-2012-BER-002 and KAUST baseline research funds to M.L.B., as well as National Geographic Society grant 9024-11 to J.D.D.