Neighbor-joining phylogenetic tree drawn using from COI sequence data. Bootstrap support (>50%) after 1,000 replications is shown at each node. Italic accession numbers with dagger (AY012732, AY012733, AY012742–AY012747) are from Lessios et al. (2001) and red accession numbers with asterisk (AB900024, AB909927, AB909929–AB909931, AB909933–AB909935, AB909942, AB909945, AB909947, AB909949, AB909953, AB909955, AB909957) are from Chow et al. (2014).

 
 
  Part of: Chow S, Konishi K, Mekuchi M, Tamaki Y, Nohara K, Takagi M, Niwa K, Teramoto W, Manabe H, Kurogi H, Suzuki S, Ando D, Jinbo T, Kiyomoto M, Hirose M, Shimomura M, Kurashima A, Ishikawa T, Kiyomoto S (2016) DNA barcoding and morphological analyses revealed validity of Diadema clarki Ikeda, 1939 (Echinodermata, Echinoidea, Diadematidae). ZooKeys 585: 1-16. https://doi.org/10.3897/zookeys.585.8161