Euherdmania claviformis (Ritter 1903)

are preyed upon by

• Global Biotic Interactions: Patiria miniata (Brandt 1835) (Bat star)
• Global Biotic Interactions: Megathura crenulata (Sowerby I 1825) (giant keyhole limpet)
• Global Biotic Interactions: Neobernaya spadicea (Swainson 1823) (chestnut cowrie)
• Global Biotic Interactions: Halichoeres semicinctus (Ayres 1859) (Rock wrasse)
• Global Biotic Interactions: Dermasterias imbricata (Grube 1857)
• Global Biotic Interactions: Lytechinus pictus (Verrill 1867)
• Global Biotic Interactions: Hexagrammos decagrammus (Pallas 1810) (Greenling)
• Global Biotic Interactions: Embiotoca jacksoni Agassiz 1853 (Black perch)
• Global Biotic Interactions: Embiotoca lateralis Agassiz 1854 (Striped sea perch)
• Global Biotic Interactions: Sebastes mystinus (Jordan & Gilbert 1881) (Blue rockfish)
• Global Biotic Interactions: Strongylocentrotus purpuratus (Stimpson 1857) (Purple sea urchin)
• Global Biotic Interactions: Mesocentrotus franciscanus (A. Agassiz 1863) (Red sea urchin)