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Show 1877.] DR. O. FINSCH ON THE BIRDS OF PONAPE. 777 Al. Caud. Eostr. Tars. Dig. med. in. hn. in. lin. lin. lin. lin. 6 9 3 4 Hi n H 7 2 3 9 Hi n jj Mr. Howard Saunders, in his Monograph of the Sterninee (P. Z. S. 1876, p. 671, confounds this very distinct bird with A. cinereus, Neboux, which latter must, according to his views, bear the name A. cceruleus, Bennett. 22. GYGIS ALBA. Gygis alba (Sparrm.) ; Layard, P. Z. S. 1876, p. 504. Native name Ekiaki (Hiibner). One specimen from Eua (August) in the very interesting stage of the young-plumaged bird after leaving the nest. It is white ; but the feathers on the upper parts have narrow edgings of pale rufous. This bird occurs also on Vavao (Hiibner, in litt.). Mr. Layard found it common on Eua. 23. PHAETON FLAVIROSTRIS. Phaeton flavirostris, Brandt.; Layard, P. Z. S. 1876, p. 504. Native name Tavaki (Hiibner et Layard). One old female from Eua (August). Dr. Graffe notices as "Tavaki" Ph. cethereus from Tonga (Journ. f. Orn. 1870, pp.403 et 411). Mr. Layard got the egg of this species on Eua. 24. DYSPORUS SULA. Dysporus sula (L.), F. & H. Ornith. Central-Polyn. p. 260. Diomedea, sp. ? Graffe, Journ. f. Ornith. 1870, pp. 403 et 411. Native name Gutulei (Hiibner). One old male from Eua (August). The "Gutulei" of natives, which Dr. Graffe supposed to be a species of Diomedea, turns out to be the well-known Booby of the sailors. 3. O n the Birds of the Island of Ponape, Eastern Carolines. By Dr. O T T O FINSCH, C.M.Z.S., Director of the M u seum of Natural History of Bremen. [Eeceived September 26, 1877.] The island of Ponape, or Ascension (sometimes written on maps Bonaby, Bonabay, Bornaby, Bonabe, Bonibet, Hunnepet, Funopet, Falupet, Falupit, Fanope, Puynipet) is the largest of the Seniavin group, which extends between 157° 54' and 158° 30' E. long., and 6° 43 and 7° 6' N. lat., and belongs to the Eastern Caroline archipelago. The island has a surface of about 7\ German miles, a circumference of about 13 German miles, and is inhabited by about 2000 natives. Having been visited only twice by the French expe- |