Gulf of Mexico, Gulf of St. Lawrence, North West Atlantic

Magdalen Islands (from Eastern Bradelle valley to the west, as far as Cape North, including the Cape Breton Channel); Prince Edward Island (from the northern tip of Miscou Island, N.B. to Cape Breton Island south of Cheticamp, including the Northumberland Strait and Georges Bay to the Canso Strait causeway)

Holotype for Argulus megalops Smith, 1874
Catalog Number: USNM 6179
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Preparation: Alcohol (Ethanol); Slide
Collector(s): United States Fish Commission
Year Collected: 1871
Locality: Vineyard Sound, Surface, Massachusetts, United States, North Atlantic Ocean

ectoparasite