1. ruFPiNus. 383 



188:3, p. -lai ; id. Ibis, 1888, p. 357 ; Maynard, Birds E. N. Am. 

 p. 492 (1879); Cory, Birds Bahamas, Y'- 219 (1880); id. Birds 

 Haiti, p. 184 (188.J); B. O. U. Liit Brit. Birds, p. 198 (1888j; 

 Milne- Edw. Sf Grand. Hist. Maduy., Ois. p. 083 (188o): Saunders, 

 cd. Van: Brit. Birds, iv. p. 27 (1884); id. Man. Brit. Birds, 

 p. 721 (1889) ; Seeb. Hist. Rrit. Birds, iii. p. 42.3, pi. oG (1885); 

 liidyiv. Man. N. Amer. Birds, p. 01 (1885); Arecalo, Aves de 

 Esp. p. 400 (1887) ; Biiller, Birds K. Zeal. ed. 2, ii. p. 238 (1888); 

 lleid. Ibis, 1888, p. 80; Suuthw. in Sterensons Birds Norf. iii. 

 p. 307(1890); Grant, Ibis, 1890, p. 444; Wiylesworth, Abh. k. 

 Zool. Mus. Dresden, 1892, uo. 6, i). 79 ; Irby, Birds Gibr. ed. 2, 

 p. 309 (1895). 

 Nectris obscura, Keys. ^- Bias. Wirb. Eur. pp. .\;civ, 239 (1840) ; 

 Miihle, Orn. Grievhenl. p. 130(1844); ? Heuyl. Syst. Ueb. -p. 08 

 (1850); Linderm. Voa. Griechenl.v). 171 (1800)?; Borgar. Vogelf. 

 p. 140 (1809). y > ^ JJ J J 



Puifinus dichrous, Finsch ^- Hartl. Faun. Centralpol. p. 244 (1867) ; 

 iid. P. Z. S. 1872, p. 108; Finsch, J. Mus. Godeffr. viii. p. 44 

 (1875) ; Lister, F. Z. S. 1891, p. 300. 



PutKiius ophistbomelas, vav. minor, Hartl. P. Z. S. 1807, p. 832. 



PidKims opisthoinelas, Finsch S,- Hartl. P. Z. S. 1868, pp. 9, 118; 

 iid. Cat. Mus. Godep: iv. p. 7 (1869). 



PulHnus aurluboui, Ftnsch, P. Z. S. 1872, p. Ill ; Ridyu: Pr. U.S. 

 Nat. Mus. iii. p. 12 (1880); id. Man. N. Am. Birds,y. 00 (1887) ; 

 fjunul. J.f. Orn. 1881, p. 400; Baird, Breto. !^- Ridyw. Water- 

 Birds N. Am. ii. p. 380 (1884) ; A. O. U. Check-l. N. Am. Birds, 

 p. 101 (1886) ; Cory, List Birds West Ind. p. 34 (1885) ; id. Auk, 

 V. p. 181 (1887), vi. p. 81 (1888) ; id. Cat. West Ind. Birds, p. 83 

 (lb92); Butcher, Auk, vi. p. 173 (1888); Feilden, Ibis, 1889, 

 pp. ()U, 503; Lawr. Auk, 1889, p. 19. 



PiifKiiii.s tenebrosus, Katt., Pelz. Ibis, 1873, p. 47 ; Finsch, J. Mus. 

 Godeffr. xii. p. 40 (1876) ; Bidf/iv. Man. N. Am. Birds, p. 60 

 (1887) ; ToiV72s. Pr. U.S. Nat. 3Ius.xi\i. p. 142 (1890). 



Adult. Upper surface slaty-black, nearly uniform ; under surface 

 Avhite, reaching nearly to the orbit of the eye, where the feathers as 

 well as those of the sides of the neck are mottled ; under tail-covcrts 

 blackish brown, tipped with white, the shorter central feathers 

 white ; under wing-coverts white, the margin of the wing dusky, 

 quills black throughout ; axillaries white (or sometimes slightly 

 mottled near the eud) : bill dark hazel, paler on the mandible ; 

 outside of the tarsus and outer toe black, the rest yellow. Total 

 length about 12 inches, wing 7'8 ; tail, central rectrices 3-2, lateral 

 rectrices 2"7 ; bill 1'5, tarsus 1-5, middle toe 1'65, outer toe 1-6, 

 inner too 1'3. (Manua Is., Samoan Group.) 



Sexes alike. 



Specimens vary as to the amount of the dark colouring on 

 the under tail-coverts, the darkest specimens in this respect before 

 me are those from the I'elew Islands. In none arc they entirely 

 white. I see no grounds for separating the birds from the Atlantic, 

 Indian, and Pacific Oceans, though various attempts have been 

 made to discriminate thom. The type of P. ohscurus came from 

 the mid- Pacific Ocean. 



J/ah. Tropical and Subtropical Seas of the whole world. A rare 



