From the Reise der österreichischen Fregatte Novara [...] Zoologischer Theil, A. Pelzeln, "Vögel": "Atlantic Ocean not far from the southern tip of Africa, Pacific Ocean towards the coast of Chile.
Male shot on 20 September 1857 at 36° 22' South and 5° 29' East. Brown iris, black beak, white paw and inner toe to claws. Webbed membrane between the two internal toes grey-white with straw yellow shades. The remaining part black-brown. Total body length 12”, flight distance 2’7”.
Female caught with the fishing rod by Baron von Pöck on 22 September 1857 at 35° 2' South and 7° 42' East.
Male captured on 10 April 1859 at 33° 3' South and 90° 50' East by Mr. Frauenfeld. Black-brown iris, black bill, reddish-white legs with bluish-red sheen. Webbed skin with two brown-black anterior segments. Overall length 17", wingspan 3' 3" 3'". Zlbr. [Zelebor]" (pp. 142-143).