Hysterothylacium reliquens (Norris & Overstreet 1975) Deardorff & Overstreet 1981

have host

• Global Biotic Interactions: Hypsoblennius hentz (Lesueur 1825) (Feather Blenny)
• Global Biotic Interactions: Ogcocephalus cubifrons (Richardson 1836) (Polka-dot batfish)
• Global Biotic Interactions: Diplodus argenteus (Valenciennes 1830) (Silver porgy)
• Global Biotic Interactions: Opsanus beta (Goode & Bean 1880) (Gulf Toadfish)

parasitize

• Global Biotic Interactions: Archosargus probatocephalus (Walbaum 1792) (Convict Fish)
• Global Biotic Interactions: Gymnothorax nigromarginatus (Girard 1858) (Blackedge Moray)
• Global Biotic Interactions: Chilomycterus schoepfii (Walbaum 1792) (Striped Burrfish)
• Global Biotic Interactions: Xiphias gladius Linnaeus 1758 (Broadbill Swordfish)
• Global Biotic Interactions: Ogcocephalus pantostictus Bradbury 1980 (Spotted batfish)