From editor or global species database
Type locality South Atlantic Ocean, off coast of Patagonia, Argentina, one day's sail north of the Straits of Le Maire between Staten Island and Cape San Diego. [details]
Type material Concerning the holotype, it is stated that “Nothing is known about this specimen. Off coast of Patagonia, one day’s sail north of the Straits of Le Maire between Staten Island and Cape San Diego, Tierra del Fuego. Collected February 12, 1839, by someone on one of the ships of the United States Exploring Expedition, 1838–1842.” [details]