HETEROPYGIA. 



55 



Genus HETEROPYGIA, Cows. 



Heteropygia maculata (F.). 



Tringa maculata, Dresser, Birds Ear. viii. p. 11 (1878) ; Nelson, Report 



Nat. Hist. Alaska, p. 108 (1887) ; Poyntiny, Eggs of Brit. Birds, 



p. 135, pi. 29 (1895-6). 

 Actodromas maculata, Baird, Brewer $ Ridyw. Water Birds N. Am. i. 



p. 232 (1884). 

 Tringa pectoralis, Seebohm, Brit. Birds, iii. p. 201, pi. 68 (1885) ; id. Eggs 



of Brit. Birds, p. 148, pi. 43. fig. 12 (1896). 

 Tringa acuminate pectoralis, Seebohm, Geogr. Distr. Charadriidce, p. 443 



(1887). 

 Heteropygia maculata, Sharpe, Cat. Birds B. M. xxiv. p. 562 (1896); 



id. Hand-l. i. p. 163 (1899). 



The two eggs of the Pectoral Sandpiper brought back by Captain 

 ollinson from. Arctic America, together with two skins of adult 

 birds of this species, agree closely with the egg figured by Poynting, 

 and numbered 3 on his plate (I. c.). They are very sharply 

 pyriform and fairly glossy. They are pale greyish green, coarsely 

 marked all over with spots and streaky blotches of umber-brown 

 and underlying pale purple. The markings are of very irregular 

 shape and more or less confluent, especially at the broad end, 

 where they form a dense cap. One specimen measures 1'55 

 by 1*06 ; the other is imperfect, and cannot be accurately 

 measured. 



2. Cambridge Bay, Arctic America Voy. H.M.S ' Enterprise.' 

 (Capt. Collinson). 



Heteropygia bairdi (Coues). 

 (Plate II. fig. 4.) 



Actodromas bairdi, Neioton, P. Z. S. 1871, p. 57 ; Baird, Brewer fy Ridgw. 



Water Birds N. Am. i. p. 230 (1884). 

 Tringa bairdi, Coues, Birds N.- West, p. 484 (1874) ; Nelson, Report Nat. 



Hist. Alaska, p. 109 (1887) ; Seebohm, Geogr. Distr. Charadriidee, 



p. 444(1887). 



ygia bairdi, Sharpe, Cat. Birds B. M. xxiv. p. 570 (1896) ; id 



Hand-l. i. p. 164 (1899). 



The eggs of Baird's Sandpiper are pyriform and only slightly 

 glossy. They are of a pale stone-colour, very densely speckled, 

 streaked and blotched with rich chocolate-brown and pale under- 

 lying purple. The markings are confluent at the larger end of the 

 gg, and form a more or less perfect cap. Four examples measure 

 respectively: 1-35 by -97; 1-37 by -96 ; 1-3 by -93; 1-28 by -91. 



1. North America. Seebohm Coll. 



1. Cambridge Bay, Arctic America Voy. H.M.S. ' Enterprise.' 



(Capt. Collinson). 



2. Repulse Bay, Hudson's Bay. Dr. Rae [P.], 



