472 oYPsEi-in.'F:. 



«'. Almost iiinform above. 

 n^. ]5rowu above 



a''. Winp- about 5-1 inches pelagica, p. 480. 



b'\ Wiiifr about 4'(i inches vau.vi, p. 481. 



c'K Wing about 4'2 inches fjaumevi, p. 482. 



Ifi. Glossy bluish black above sclatcn, p. 485. 



/>'. IJunip much paler than the back. 

 c\ liump pale ashy. 



(P. Only a grey band across the 



rump spinicauda, p. 483. 



^". Entire rump and shorter upper 



tail-coverts grey fumosa, p. 483. 



d''. Rump bluish ashy cinereivmtris & f/ui- 



ft". Throat almost uniform with the ab- [awens/s, pp. 485, 486. 

 domen. 

 cK Rump and upper tail-coverts pale 



brown cinereicauda, p, 482. 



r7'. Rump only a little paler than the 

 back, longer upper tail-coverts uni- 

 form with the back acuta, p. 486. 



//'. Very large, wing about 9 inches ; narrow 



white band on the neck only semicollaris, p. 479. 



h. White band across the breast. 



h'. White band on the neck connected with the 

 band across the neck, thus forming a ring- 

 like collar zonaris and allies, 



i'. White band on the breast separated from [p. 476. 



the white patch on the neck biscutata *, p. 479. 



1. Chsetura caudacuta. 



Hirundo caudacuta. Lath. Ind. Orn. >Suppl. p. 57 (1801) ; Step/i. 



Gen. Zool. x. p. 133 (1817) : VieiU. N. D. xiv. p. 335 (1817) ; id. 



Enc. Meth. p. 531 (1823). 

 Hirundo ciris, Pall. Zoogr. Rosso-As. i. p. 541 (1811). 

 Hirundo fusca, Sfeph. Gen. Zool. x. p. 133 (1817). 

 Ghaetura australis, Sti'jyh. Gen. Zool. xiii. p. 76 (1826). 

 Chaetura fusca, Steph. ibid. p. 5 (1826). 

 Chsetura macroptera, S^cains. Zool. III. pi. 42 (1833) ; id. Class. B. 



ii. p. 340 (1837). 

 Acanthylis caudacuta. Gray, Ann. 8f Mag. Nat. Hist. 1843, p. 194 



Itchh. Voff. Neuholl. i. p."l83 (1850) ; Bp. Consp. i. p. 64 (1850) 



Gould, B. Austral, ii. pi. 10 (1851-1869); Radde, Eeis. Sibir 



Vog. p. 129 (1863) ; Bosenb. J. f. O. 1864, p. 117 ; Sivinh. P. Z. S. 



1863, p. 263 (China) ; id. Ibis, 1870, p. 90 (Hainan) ; Neivt. P. Z. S. 



1880, p. 1 (England) t ; Dresser, B. Bur. iv. p. 613, pi. 270 (1880) ; 



* Bonaparte, Consp. i. p. 64 (1850), includes in his genus Acanfhulis a " Chrn- 

 iura alhifrons, Jard. & Selby, III. Orn. ii. pi. 56 ; " but on referring to that work 

 I find described and figured Aoanihica alhifron.^, from Australia. Bonaparte 

 must have mistaken Acanthi~a for Acanthylis. {Cf. Oat. B. vii. p. fifiG.) 



Gmelin's " Hirundo sinensis," quoted by Vieill. Enc. Meth. p. 5.34 (1822) and 

 Bonaparte, Consp. i. p. 65, as Cypsclus sinensis, is a Cotylc. {Cf. Sharpe, Cat. 

 B. X.) 



+ Newton, Dresser, and a few other avithors have spelt the name correctly 

 Acanthyllis. 



