Hysterothylacium aduncum (Rudolphi 1802) Deardorff & Overstreet 1981

are endoparasites of

• Global Biotic Interactions: Lepidonotus squamatus (Linnaeus 1758)
• Global Biotic Interactions: Pleurobrachia pileus (O. F. Müller 1776)
• Global Biotic Interactions: Scomber japonicus Houttuyn 1782
• Global Biotic Interactions: Pagurus acadianus Benedict 1901
• Global Biotic Interactions: Pagrus pagrus (Linnaeus 1758)

eat

• Global Biotic Interactions: Lepidopsetta bilineata (Ayres 1855)
• Global Biotic Interactions: Clupea pallasii Valenciennes 1847
• Global Biotic Interactions: Oncorhynchus tshawytscha (Walbaum 1792)
• Global Biotic Interactions: Boreogadus saida (Lepechin 1774)
• Global Biotic Interactions: Mallotus villosus (Müller 1776)

have host

• Global Biotic Interactions: Merluccius merluccius (Linnaeus 1758)
• Global Biotic Interactions: Merluccius merluccius (Linnaeus 1758)
• Global Biotic Interactions: Hexagrammos otakii Jordan & Starks 1895
• Global Biotic Interactions: Puffinus tenuirostris
• Global Biotic Interactions: Cleisthenes herzensteini (Schmidt 1904)

parasitize

• Global Biotic Interactions: Trisopterus luscus (Linnaeus 1758)
• Global Biotic Interactions: Sprattus sprattus (Linnaeus 1758)
• Global Biotic Interactions: Sebastes crameri (Jordan 1897)
• Global Biotic Interactions: Pungitius pungitius (Linnaeus 1758)
• Global Biotic Interactions: Leuciscus idus (Linnaeus 1758)