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The Devonian fauna from the Campbellton Formation of northern New Brunswick was discovered in 1881 at the classic locality in Campbellton. About a decade later A.S. Woodward at the British Museum (Natural History) (now the Natural History Museum, London) acquired specimens through fossil dealer R.F. Damon. Woodward was among the first to describe the fish assemblage of ostracoderms, arthrodires, acanthodians and chondrichthyans. At the same time the museum also acquired specimens of a large pterygotid eurypterid. Although the vertebrates received considerable attention, the pterygotids at the Natural History Museum, London are described here for the first time. The first pterygotid specimens collected in 1881 by the Geological Survey of Canada were later identified by Clarke and Ruedemann in 1912 as Pterygotus atlanticus , although they suggested it might be a variant of Pterygotus anglicus Agassiz. An almost complete pterygotid recovered in 1994 from the Campbellton Formation at a new locality in Atholville, less than two kilometres west of Campbellton, has been identified as P. anglicus Agassiz. Like the specimens described by Clarke and Ruedemann, the material from the Natural History Museum, London is herein referred to P. anglicus .  RESUME  La faune devonienne de la Formation de Campbellton dans le Nord du Nouveau-Brunswick a ete decouverte en 1881 a l’emplacement classique de Campbellton. Environ une decennie plus tard, A. S. Woodward, du British Museum (Histoire naturelle) (maintenant le Natural History Museum de Londres) a fait l’acquisition de specimens par l’entremise du negociant de fossiles R. F. Damon. Woodward a figure parmi les premiers a decrire l’assemblage de poissons d’ostracodermes, d’arthrodires, d’acanthodiens et de chondrichthyens. Le musee a egalement fait en meme temps l’acquisition de specimens d’un eurypteride pterygotide de fortes dimensions. Meme si les vertebres ont beneficie d’une attention considerable, les pterygotides du Natural History Museum de Londres sont decrits aux presentes pour la premiere fois. Les premiers specimens de pterygotides recueillis en 1881 par la Commission geologique du Canada ont ulterieurement ete identifies par Clarke et Ruedemann en 1912 en tant que Pterygotus atlanticus , bien que les chercheurs aient avance qu’il pourrait s’agir d’une variante du Pterygotus anglicus Agassiz. On a recupere en 1994 un pterygotide presque complet de la Formation de Campbellton dans un nouvel emplacement situe a Atholville, a moins de deux kilometres a l’ouest de Campbellton, lequel a ete identifie en tant que P. anglicus Agassiz. A l’instar des specimens decrits par Clarke et Ruedemann, l’article du Natural History Museum de Londres est cite aux presentes a titre de P. anglicus .

Nineteenth century collections of Pterygotus anglicus Agassiz (Chelicerata; Eurypterida) from the Campbellton Formation, New Brunswick, Canada