Onchobothrium antarcticum Wojciechowska 1990

are endoparasites of

• World Register of Marine Species: Notothenia rossii Richardson 1844 (marbled rockcod) (adult)
• World Register of Marine Species: Bathyraja maccaini Springer 1971 (雷氏鰩) (adult)
• World Register of Marine Species: Bathyraja eatonii (Günther 1876) (Eaton's skate) (adult)

body length

• MADtraits: 0.16 mm (max)
• MADtraits: 150 mm (max)
• MADtraits: 0.043 mm (max)
• MADtraits: 0.0415 mm (single measurement)
• MADtraits: 4.3 mm (max)

body shape

• MADtraits: cylinder
• MADtraits: lathlike
• MADtraits: sphere

body width

• MADtraits: 0.043 mm (max)
• MADtraits: 0.16 mm (max)
• MADtraits: 0.0415 mm (single measurement)
• MADtraits: 0.135 mm (single measurement)
• MADtraits: 0.595 mm (single measurement)

number of hosts

• MADtraits: 3
• MADtraits: 1
• MADtraits: 2

trophic guild

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