Figure 1.

Map of sampling locations and putative geographic distribution ranges of Chromis dimidiata (red), C. fieldi (yellow), and C. margaritifer (blue). The shaded area between blue and yellow ranges indicates potential overlapping regions between the species C. margaritifer and C. fieldi. Collection sites are indicated by red stars on the map and locations are given code names as follows: ASH: Ashmore Reef; CAR: Cartier Reef; CHA: Chagos; COC: Cocos/Keeling Islands; MAL: Maldives; RDS: Red Sea; SEY: Seychelles; SOC: Socotra; XMS: Christmas Island. Putative hybrids were collected from XMS