Proleptus acutus Dujardin 1845

are endoparasites of

• World Register of Marine Species: Schroederichthys chilensis (Guichenot 1848) (智利短唇沟鲨) (adult)
• World Register of Marine Species: Raja clavata Linnaeus 1758 (Thornback ray) (adult)
• World Register of Marine Species: Zapteryx brevirostris (Müller & Henle 1841) (adult)
• World Register of Marine Species: Sympterygia bonapartii Müller & Henle 1841 (Smallnose Fanskate) (adult)
• World Register of Marine Species: Raja miraletus Linnaeus 1758 (Brown ray) (adult)

geographic distribution

• World Register of Marine Species: Brazilian Exclusive Economic Zone
• World Register of Marine Species: Chilean Exclusive Economic Zone
• World Register of Marine Species: European waters (ERMS scope)
• World Register of Marine Species: Argentinean Exclusive Economic Zone
• World Register of Marine Species: Brittany

trophic guild

• World Register of Marine Species: endoparasite
• World Register of Marine Species: endoparasite
• World Register of Marine Species: endoparasite
• World Register of Marine Species: endoparasite
• World Register of Marine Species: endoparasite