), shrimp, and in one case a juvenile Atlantic sharpnose shark (Rhizoprionodon terraenovae), which may have been scavenged from the bycatch discard of a shrimp trawler. The finetooth shark may be preyed upon by larger sharks. Parasites documented from this species include the tapeworm Triloculatum geeceearelensis, and unidentified species in the genera Anthobothrium, Paraorygmatobothrium, and Phoreiobothrium.
The finetooth shark is susceptible to predation by larger sharks, and it has been found to be infected with parasites such as a tapeworm called Triloculatum geeceearelensis, as well as unidentified species from the genera Anthobothrium, Paraorygmatobothrium, and Phoreiobothrium.