Cuapetes americanus (Kingsley 1878)

are commensal with

• Global Biotic Interactions: Nemaster grandis AH Clark 1909

are eaten by

• Global Biotic Interactions: Synalpheus townsendi Coutière 1909 (Townsend snapping shrimp)
• Global Biotic Interactions: Neoniphon marianus (Cuvier 1829) (Longjaw Squirrelfish)
• Global Biotic Interactions: Gonodactylus lacunatus
• Global Biotic Interactions: Haemulon aurolineatum Cuvier 1830 (Caesar)
• Global Biotic Interactions: Synalpheus spinifrons (H. Milne Edwards 1837)

eat

• Global Biotic Interactions: Amphistegina gibbosa d'Orbigny 1839
• Global Biotic Interactions: Eponides repandus (Fichtel & Moll 1798)
• Global Biotic Interactions: Bigenerina irregularis Phleger & Parker 1951
• Global Biotic Interactions: Quinqueloculina tricarinata d'Orbigny 1839
• Global Biotic Interactions: Pyrgo sarsi (Schlumberger 1891)