Ditrichocorycaeus amazonicus (Dahl F. 1894)

are eaten by

• Global Biotic Interactions: Sabellastarte magnifica (Shaw 1800) (giant feather-duster worm)
• Global Biotic Interactions: Palythoa caribaeorum Duchassaing & Michelotti 1860 (caribbean sea mat)
• Global Biotic Interactions: Terrazoanthus minutus (Duerden 1898)
• Global Biotic Interactions: Orbicella annularis (Ellis & Solander 1786) (Lobed Star Coral)
• Global Biotic Interactions: Nicidion mutilata (Webster 1884)

are preyed upon by

• Global Biotic Interactions: Rhincalanus nasutus Giesbrecht 1888
• Global Biotic Interactions: Scomber japonicus Houttuyn 1782 (Pacific Chub Mackerel)
• Global Biotic Interactions: Etheostoma olmstedi Storer 1842 (Tessellated Darter)
• Global Biotic Interactions: Membras martinica (Valenciennes 1835) (Rough Silverside)
• Global Biotic Interactions: Clione limacina (Phipps 1774) (Sea Angel)

eat

• Global Biotic Interactions: Globigerina bulloides d'Orbigny 1826
• Global Biotic Interactions: Tripos furca
• Global Biotic Interactions: Tripos fusus
• Global Biotic Interactions: Euchaeta marina (Prestandrea 1833)
• Global Biotic Interactions: Dinophysis caudata

prey on

• Global Biotic Interactions: Corycaeus speciosus Dana 1849
• Global Biotic Interactions: Metridia princeps Giesbrecht 1889
• Global Biotic Interactions: Subeucalanus pileatus
• Global Biotic Interactions: Ectocyclops phaleratus
• Global Biotic Interactions: Eurytemora americana Williams 1906