206 LAREDO. 



spots, which are somewhat indistinct. The markings are small 

 and have a tendency to form a very irregular and ill-defined zone 

 round the larger end. Five examples vary from 1'75 to 2-08 in 

 length, and from 1"3 to 1'4 in breadth. 



3. Anderson River Fort, Arctic America Saunders Coll. 



(R. MaoFarlane). 

 1. Anderson River (iJ. MacF. : Smiths. Salvin-Godman Coll. 



Inst). 

 1. AndieTaonB,iY6i{It.MacF.:Senshaw Salvin-Godman Coll. 



Coll.). 



Larus franklini, Swains. ^ Rich. 



Larus franklini, Newton, P. Z. 8. 1871, p. 57, pi. iv. flg. 4 ; Baird, 

 Brewer ^ Ridgw.' Water Birds N. Am. ii. p. 258 (1884) ; Saunders, 

 Cat. Birds B. M. xxv. p. 191 (1896) ; Sharps, Hand-l. i. p. 140 

 , (1899). 



The six eggs of Franklin's Eosy GuU. in the Collection vary in form 

 from pointed to blunt oval. The ground-colour is olive-buff, and 

 this is spotted and blotched with yellowish brown, blackish brown, 

 and underlying pale purple. On two eggs the markings take the 

 form of streaks and lines, which are interlaced and form an intricate 

 pattern. The eggs measure from 2'02 to 2-15 in length, and from 

 1-37 to 1-45 in breadth. 



1. N. America [Smiths. Inst.). Salvin-Godman Coll. 



2. Manitoba Lake (i>. Qunn : Smiths. Saunders Coll. 



Inst.). 



3. Manitoba Lake (D. Gvmn: Senshaw Salvin-Godman Coll. 



CoU.). 



Larus atricilla, Linn. 



Atricilla catesbaei, Baedeker, Eier Eur. VSg. tab. 72. fig. 2 (1855-63). 



Larus atricilla, Baird, Brewer ^ Ridgw. Water Birds N. Am. ii. p. 264 

 (1884) ; Seebohm,, Brit. Birds, iii. p. 316, fig. 52 (1885) ; Saunders, 

 Cat. Birds B. M. xxv. p. 194 (1896) ; Sharpe, Sand-l. i. p. 140 

 (1899). , ' 



The eggs of the Laughing GuU. are much of one type. They vary 

 from a pointed to a blunt oval form. The ground-colour is a pale 

 olive-buff and this is marked, pretty evenly all over the shell, but- 

 occasionally more densely at the larger end than elsewhere, with spots 

 and small blotches of yellowish brown, chocolate-brown, blackish 

 brown, and inconspicuoijsly with pale underlying purple. The 

 markings are sometimes iMear and streaky. The eggs vary from 

 2 to 2-35 in length, and f^m 1'52 to 1-6 in breadth. 



1. N. America (Smiths. Inst.). Salvin-Godman Coll. 



5. Long Island Seebohm Coll. 



4. New Jersey (Krider : Hargitt Coll.). Seebohm Coll. 

 1. New Jersey Coast {II. B. Dresser). Saunders Coll. 



5. Hog Island, Virginia, June (Dr. IKfe : Salvin-Godman Coll. 



Henshaw Coll.). 

 1. Oobbs Island, Virginia, 11th June. Saunders Coll. 



