12. HALOB^NA. 431 



12. HALOB.ffiNA. ^^ 



Halobsena, Is. Geoff r. St.-Hilaire, '[SPjC,,Jide Up. Consp. 

 Av. ii. p. 193 (1850) ; Coues, Pr. Ac. Phil. 1866, 

 p. 162 H. cserulea. 



Zapriura, C'oues, Bull. U.S. Nat. Mus. no. 2, p. 34 



(1875) H. cferulea. 



Ratvje. Southern Ocean. 



1. Halobaena caerulea. 



Blue Petrel, Forster, Voy. i. p. 91 ; Lath. Gen. Syn. iii. pt. 2, p. 415 

 (1785); id. Gen. Hist. Birds, x. p. 196 (1824). 



Another Blue Peteril, Cook's Voy. i. p. 32. 



Procellaria cferulea, Gm. Syst. Nat. i. p. 560 ("1788) ; Lath.Ind. Orn. 

 ii. p. 827 (1790) ; Vieill. N. Diet. d'Hist. Nat. xxv. p. 421 (1817) ; 

 id. Enc. Meth. p. 81 (1823) ; id. Gal. Ois. ii. p. 232 (1825) ; Kuhl, 

 Beitr. p. 145 ( 1820) ; Grat/, Lid AnseresBrit. Mus. p. 105 (1844) ; 

 id. Gen. Birds, iii. p. 648 (1844); id. Ibis, 1802, p. 247; Gonld, 

 Birds Austr. \n. pi. 52 (1847) ; Peak, U.S. Expl.E.vp.ym. p. 338 

 (1848) ; Layard, Birds S. Afr. p. 361 (1867) ; id. Ibis, 1876, p. 393, 

 1878, p. 264; Hutton, Cat. Birds N. Zeal. p. 47 (1871); Bzdler, 

 Birds N. Zeal. p. 306 (1873) ; Finsch,J. f. Orn. 1870, p. 373, 1874, 

 p. 208 ; Finsch v.^- Hartl. Orn. Centralpol. p. 246 (1867). 



Pachvptila c.-erulea, Illig. Prodr. p. 275 (1811) ; Steph. in Shavfs 

 Gen. Zool. xiii. p. 252 (1826). 



Procellaria forsteri. Smith, 111. Zool. S. Afr. pi. 54 (1840). 



Procellaria similis, Forst. Descr. An. p. 59 (1844). 



Halobfeua cseralea, Bp. Compt. Bend. xlii. p. 768 (1856) ; id. Consp. 

 Av. ii. p. 193 (1856) ; Cones, Pr. Ac. Phil. 1866, pp. 163, 171 ; 

 Goidd, Handb. Birds Austr. ii. p. 457 (1865) : Coues 8c Kidder, 

 Bull. U.S. Nat. Mus. no. 2, p. 34 (1875) ; Kidder, Bull. U.S. Nat. 

 Mus. no. 3, p. 17 (1876) ; Moseley, Notes Nat. ' Chall' p. 181 (1879) ; 

 Sharpe, Phil. Trans, clxviii. p. 141 (1879) ; id. Bayard's Birds 

 S. Afr. p. 768 (1884) ; Buller, Birds N. Zeal.ed. 2, ii. p. 214 (1888) ; 

 id. Tr. N. Zeal. Inst. xxv. p. 78 (1893). 



Halobsena typica, Bj). Compt. Reiid. xlii. p. 768 (1856) ; id. Consp. 

 Av. ii. p. 194 (1856). 



Procellaria velox, Solander ? cf. Salv. in Rowley^ s Orn. Misc. i. p. 238. 



Adult. Upper surface pale ashy-blue, darker on the crown, nape, 

 lesser wing-coverts, outer webs of outer primaries, and the scapulars, 

 the latter tipped with white ; feathers of the middle of the forehead 

 and anterior part of the crown widely tipped with white ; rest of 

 the forehead and whole under surface pure white, sides of the 

 breast ashy-blue, under wing-coverts, primaries beneath, and axil- 

 laries white ; outer rectrix white, the two next ashy, the base of 

 the inner web white, the three next ashy with white tips, widest 

 on the middle feather, a slightly darker sub terminal ashy band : 

 bill black, the edge of the mandible blue ; tarsi and toes blue, the 

 webs flesh-colour. Total length about 11 inches, wing 8-5, tail 3*6, 

 bill 1*4, tarsus 1-3, middle toe 1-6, outer toe a little shorter, inner 

 toe 1-3. 



Hah. Southern Seas, between lat. 40° and 60° S. 



