24B HIE^^"DIN1DJ:. 



Genus PETROCHELIDON, Cab. 



The eggs of the Swallows of this genus are of a regular oval 

 shape, and they exhibit a small amount of gloss. Those of some 

 species are plain white, those of others spotted. 



Petrochelidon nigricans ( Vicill). 



Hylocbtlidon nigricans, Gould, Handh. Birds Austr. i. p. Ill (18^5). 

 Petrochelidon nigricans, Sharj^e, Cat. Birds B. M. x. p. 190 (1885) ; id. ^ 



Wyatt, Mon. Hirundimda, ii. p. 525 (1885-94) ; A'orth, Kcsfs ^ 



Hl/l/s Austr. Birds, p. 32, pi. xiii. fig. 14 (1889) ; Nehrk. Kut. 



Eiersamml. p. 8G (1890) ; Camphell, Nests ^- Ecjgs Amtr. Birds, i. 



p. 456, pi. 15 (1901) ; S/ucr2}e, Rand-l. iii. p. 200 (1901). 



The eggs of the T\'hite-ruraped Cliff-Swallow are of a white 

 colour, minutely speckled, chiefly at the broad end, with rufous and 

 lavender. They measure from -04 to -72 in length, and from -o to 

 •57 in breadth. 



1. South Australia [G. F. Anr/as). Gould Coll. 



2. New South Wales (Tr(7so«). Gould Coll. 



3. New South Wales, 18th Oct. {A.J. Crowley Bequest. 



North). 



Petrochelidon pyrrhonota ( Vicill.). 



Ilirundo luuifrons, Breucv, N. Anwr. Ool. pt. i. p. 94, pi. v. figs. 08-73 



(1856). 

 Petrochelidon luuifrons, Baird, Brewer S,- Bid</iv. N. A7ner. Birds, i. 



p. 334 (1874). 

 retrochelidon pyrrhonota, Salv. 4" Godm. Biol. Centr.-Amer., Aves, i. 



p. 226 (1883) ; S/mrpe, Cat. Birds B. M. x. p. 193 (1885) ; id. ^■ 



Wyatt, Mon. Hirimdinidce , ii. p. 531 (1885-94) ; Sd. 8) Huds. Argent. 



Oru. i. p. 30 (1888) ; NeJirk. Eat. Eiersaminl. p. 87 (1899) ; &karjje, 



liand-l. iii. p. 201 (1901). 



The eggs of the North-American Cliff-Swallow are white, coarsely 

 speckled and blotched with various shades of brown, chestnut, and 

 lavender. The markings are densest at the broad end. Specimens 

 measure from -75 to -85 in length, and from "oS to -57 iu 

 breadth. 



5. North America. Salvin-Godman Coll. 



4. North America (Heiishaio Coll.). Salvin-Godman Coll. 



5. North America. Crowley Bequest. 

 4. Piocky Mountains {D. G. Elliot : Crowley Bequest. 



Tristram Cull.). 



4. Pembina, Dakota {Ilcnshaiv Coll.). Salvin-Godman Coll. 



5. Manitoba, 5th Aug. {G. M. N. Anier. Bound. Comm. 



Dawson). 



