albicaudatus, Opistognathus Smith-Vaniz [W. F.] 2011:35, Figs. 1-4 [Zootaxa No. 3085; ref. 31597] Fusilier Strait, 11°52.6'N. 93°03.13'E, Andaman Islands, depth 35 meters. Holotype: WAM P.33321-001 [not P.3332-001]. Paratypes: WAM P.33256-001 (1). •Valid as Opistognathus albicaudatus Smith-Vaniz 2011 -- (Allen & Erdmann 2012:352 [ref. 31980], Biswas et al. 2013:1 [ref. 32524], Hibino et al. 2016:33 [ref. 35047], Smith-Vaniz 2023:36 [ref. 40049], Allen & Erdmann 2024:376 [ref. 40796]). Current status: Valid as Opistognathus albicaudatus Smith-Vaniz 2011. Opistognathidae. Distribution: Northeastern Indian Ocean: Andaman Islands (India) endemic. Habitat: marine.