8. CYJIODKOMA. 3()5 



p. 307; id. Birds Austr. vii. pi. 62 (1847) ; Reich. Natat. pi. cclxvii. 



figs. 2239-^40 (1850); Gray, Cat. Birds Trop. Id. Pac. p. 56 (1859) ; 



id. Ibis, 1862, p. 245; Boch ^ Kexoton,Ibis, 1863, p. 175; Layard, 



Ibis, 1863, p. 249 ; id. Birds S. Afr. p. 358 (1869) ; id. Ibis, 1867, 



p. 459; Hiitton, Ibis, 1867, p. 189; Sperling, Ibis, 1868, pp. 283, 



292, 1872, pp. 75, 76; Hi<Uon, Cat. Birds N. Zeal. p. 48 (1871) ; 



Bulle); Birds N. Zeal p. 319 (1873) ; id. Ibis, 1874, p. 121 ; Finsch, 



J.f. Orn. 1870, p. 370 ; id. op. cit. 1874, p. 212; Cab. 8,- Reich. 



J. f. Or?i. 1876, p. 329; Hartl. Viig. Madag. p. 372 (1877); 



Sandager, Trans. N. Zeal. Inst. xxii. p. 293 (1890). 

 Thalassidroma tropica, Gould, Ann. Sf Mag. N. H. xiii. p. 366 ; 



Gray, Cat. Birds Truj). Isl. Pac. p. 56 (lf<59); Milne-Edto. Ami. 



Sc. Nat., Zool. 1882, p. 19 ; Milne-Edw. S,- Grand. Hist. Mad., Ois. 



p. 676 (1890). 

 Frefjetta melanogastei-, Bp. Consp. Av. ii. p. 198 (1856) ; id. Compt. 



Rend. xlii. p. 769 (1856) ; Cottes, Pr. Ac. Phil. 1864, pp. 87, 91 ; 



Gonld, Handb. Birds Austr. ii. p. 479 (1865) ; Hidton, Ibis, 1869, 



p. 352 ; id. 1870, p. 396 ; Giyl. Faun. Vert. Oceano, p. 38 (1870) ; 



Salv. P. Z. S. 1878, p. 736; td. Voy. Chall, Zool. ii. pt. viii. p. 142 



(1881); Saund. P. Z. S. 1880, p. 164; Buller, Birds N. Zeal. ed. 2, 



ii. p. 249 (1888) ; Wiglesivorth, Ahh. k. Zool. Mas. Dresden, 1892, 



no. 6, p. 79. 

 Procellaria melanogastra, Schl. M>is. P.-B., vi. Procell. p. 6 (1863) 



(partim) ; Gray, Hand-l. iii. p. 104 (1871). 

 Procellaria tropica, Gray, Hand-l. iii. p. 104 (1871). 

 Oceanitis tropica, Sharpe, Phil. Trans. clxTiii. p. 130 (1879) ; id. 



Bayard's Birds S. Afr. p. 764 (1884). 

 Procellaria iuelanoga.ster ?, Penrose, Ibis, 1879, p. 282. 

 Cymodroma melauogaster, Ridgn: Man. N. Am. Birds, -p. 72 (1887). 



Adult male. Sooty-black, head rather darker, greater wing-coverts 

 much paler, margin of the wing indistinctly edged with pale sooty ; 

 base of the feathers of the throat and of the under tail-coverts, 

 flanks, upper tail-coverts, and under wing-coverts white, breast and 

 middle of the abdomen sooty ; tail black, base of the lateral rectrices 

 white : bill and legs black. Total length about 8 inches, wing 7, tail 

 3'2, bill 0-9, tarsus 1"6, middle and outer toes 1-03, inner toe 0*95. 



Fenude. Similar to the male. 



The amount of white on the throat varies, being almost pure in 

 some specimens and quite concealed in others. 



Hah. Southern Ocean northwards to the Bay of Bengal and in 

 the Atlantic to the Tropic of Cancer. 



a. Ad. sk. North Atlantic, lat. 6° 33' N., long. Gould Coll. 



18'' 6' W. (A tvpe of Th. tropica, Gould.) 



h. 2 ad.sk. North Atlantic, lat. 0° 12' N., long. Toy. II.M.S. 'Ptattle- 



30" W. [J. Macgillivray). snake.' 



c. Ad. .sk. Bay of Bengal. Tweeddale Coll. 



d-f. Ad.sk. Indian Ocean, lat. .'36° 57' S., long. Earl of Crawford and 



40= 41' E., Oct. 15. Balcarres [P.]. 



g. Ad. .«k. Indian Ocean, lat. 32° 36' S., long. Earl of Crawford and 



52° 58' E., Oct. 19. Balcarres [I'.]. 



/(. Ad. sk. S. Indian Ocean, lat. 43° S., long. Voy. H.M.S. 'Rattle- 



140° ?:. (J. Macgillivray). snake.' 



'•./• cJ ? inl. lioyal Sound, Kerguelen Land Tran.iit of Venus 

 sk. {Rei\ A. F. Eaton). Exped. 



