Cura foremanii (Girard, 1852) | 1969 or earlier | | | Ontario, New Brunswick, Prince Edward Island, Nova Scotia, Newfoundland, Maine, New York, and Pennsylvania. Material now in the collections of the National Museum of Natural Sciences, Ottawa, and the Royal Ontario Museum. |
Stylochus ellipticus (Girard, 1850) | prior to 1940 | | | Texas to Prince Edward Island, very common south of Massachusetts. |
Euplana gracilis (Girard, 1850) | 1940 or earlier | | | Florida to Prince Edward Island, common. Habits.—Active, among seaweeds, hydroids, tunicates, etc., on pilings, also among old shells, littoral. |