Galactosomum spinetum (Braun 1901)

are endoparasites of

• World Register of Marine Species: Rynchops niger Linnaeus 1758 (Black Skimmer) (adult)
• World Register of Marine Species: Hyporhamphus unifasciatus (Ranzani 1841) (横带下鱵鱼) (adult)
• World Register of Marine Species: Thalasseus maximus (Boddaert 1783) (Royal tern) (adult)

geographic distribution

• United States Species List: United States
• World Register of Marine Species: Floridian
• World Register of Marine Species: Brazilian Exclusive Economic Zone
• World Register of Marine Species: Puerto Rican Exclusive Economic Zone
• South Sudan Species List: South Sudan

latitude

• OBIS environmental data records: 27.4703 degrees (max)
• OBIS environmental data records: 23.0251 degrees (min)

longitude

• OBIS environmental data records: -89.1347 degrees (min)
• OBIS environmental data records: -82.3407 degrees (max)

trophic guild

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