An updated concept and revised composition for Hamacreadium Linton, 1910 (Opecoelidae: Plagioporinae) clarifies a previously obscured pattern of host-specificity among species Author Martin, Storm B. Author Cutmore, Scott C. Author Ward, Selina Author Cribb, Thomas H. text Zootaxa 2017 4254 2 151 187 journal article 33240 10.11646/zootaxa.4254.2.1 64b0d4b0-479e-484a-aaf5-d5237292d4a5 1175-5326 545862 0BDF72E4-5330-4EE7-8560-DF44E71C1F41 Cainocreadium lintoni ( Siddiqi & Cable, 1960 ) Durio & Manter, 1968 Synonyms: Hamacreadium lintoni Siddiqi & Cable, 1960 . Records. From the Nassau grouper, Epinephelus striatus (Bloch) , and the coney, Cephalopholis fulva (Linnaeus) [as C . fulvus (Linnaeus) ] ( Serranidae ) off Puerto Rico by Siddiqi & Cable (1960) . From E . striatus off Puerto Rico by Dyer et al . (1985) . From the graysby, Cephalopholis cruentata (Lacépède) [as Epinephelus cruentatus (Lacépède) ], E . striatus and Haemulon sciurus off Puerto Rico by Dyer et al . (1992) . From the red grouper, Epinephelus morio (Valenciennes) off St. Thomas, U.S. Virgin Islands by Andres et al . (2014) . Remarks. This species was described based on three specimens. The genital pore is medial and the excretory vesicle extends to the intestinal bifurcation. The combination proposed by Durio & Manter (1968) has been recognised by subsequent authors ( Dyer et al . 1985 ; Bray & Cribb 1989 ) and supported with molecular analyses ( Andres et al . 2014 ). In their review of the parasite fauna of Lutjanus griseus , Argáez-García et al . (2010) cite reports of C . lintoni in that fish by Siddiqi & Cable (1960) and Dyer et al . (1985) . This appears to be a mistake, as neither study lists that fish as a host.