Elytrophalloides oatesi (Leiper & Atkinson 1914) Szidat & Graefe 1967

are endoparasites of

• World Register of Marine Species: Trematomus pennellii Regan 1914 (彭氏拟肩孔南极鱼) (adult)
• World Register of Marine Species: Trematomus bernacchii Boulenger 1902 (Emerald rockcod) (adult)
• World Register of Marine Species: Trematomus hansoni Boulenger 1902 (striped rockcod) (adult)
• World Register of Marine Species: Upeneichthys lineatus (Bloch & Schneider 1801) (紅似緋鯉) (adult)
• World Register of Marine Species: Lovettia sealii (Johnston 1883) (塔岛南乳鱼) (adult)

geographic distribution

• World Register of Marine Species: Ross Sea
• World Register of Marine Species: Falkland Islands part of the South Atlantic Ocean
• World Register of Marine Species: Chilean part of the South Pacific Ocean
• World Register of Marine Species: McMurdo Sound
• World Register of Marine Species: Adélie Land [RAMS]

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