ACANTHOPNEirSTH. 227 



Genus ACANTHOPNEUSTE, Blasius. 



Acanthopneuste borealis (Bias.). 



Phylloscopus borealis, Dresser, Birds Eur. ii. p. 509 (1878) ; Seebohm, 

 Ibis, 1879, p. 9 ; id. Cat. Birds B. M. v. p. 40 (1881). 



Acanthopneuste borealis, Oates, Fauna Brit. Ind., Birds, i. p. 412 (1889) ; 

 Sharpe, Eand-l. iv. p. 216 (1903). 



Phyllopneiiste borealis, Tacz. Faune Om. Siber. Orient, p. 254 (1890). 



The eggs of the Arctic Willow- Warbler in the Collection are of a 

 regular oval form and glossy. They are white, sparsely marked all 

 over with specks and small spots of pale pink. They are all of the 

 same size, and measure "64 by '49. 



5. Yenesei Valley, Lat. 67° N., 6th July Seebohm Coll. 

 {H. Seebohm). 



Acanthopneuste plumbeitarsus {Swinh.). 



Phylloscopus plumbeitarsus. Dresser, Birds Eur. ii. p. 507 (1878) ; See- 

 bohm, Cat. Birds B. M. v. p. 45 (1881). 

 Acanthopneuste plumbeitarsus, Oates, Fauna Brit. Ind., Birds, i. p. 414 



(1889) ; Sharpe, Sand-l. iv. p. 217 (1908). 

 Phvllopneiuite plumbeitarsus, Tacz. Faune Orn. SibSr. Orient, p. 259 

 " (1891). 



The egg of Middendorflfs Willow- Warbler in the Collection is of 

 a regular oval form, slightly glossy and plain white. It measures 

 •62 by -49. 



1. Lake Baikal, Siberia (Dybowshi). Seebohm Coll. 



Acanthopneuste corouata {Temm.). 



Phylloscopus coronatus, Seebohm, Cat. Birds B. M. v. p. 48 (1881) ; id. 



Birds Japan. Emp. p. 69 (1890) ; Nehrk. Kat. Eiersamml. p. 32 



(1899). 

 Acanthopneuste coronatus, Oates, Fauna Brit. Ind., Birds, i. p. 417 



(1889). 

 Phyllopneuste coronata, Tacz. J. f. O. 1872, p. 359, 1873, pi. i. fig. 9 ; 



id. Faune Orn. Sibfy-. Orient, i. p. 262 (1891). 

 Acanthopneuste coronata, Sharpe, Hand-l. iv. p. 218 (1903). 



The eggs of Temminck's Crowned Willow-Warbler are oval in 

 shape and plain white, with a considerable amount of gloss. They 

 measure respectively "61 by '46, and -63 by '48. 



3. Hondo Isl., Japan, 25th May. Crowley Bequest. 



Acanthopneuste occipitalis (Blyth). 



Phylloscopus occipitalis, Seebohm, Cat. Birds B. M. v. p. 50 (1881) ; 



Nehrk. Kat. Eiersamml. p. 32 (1899). 

 Acanthopneuste occipitalis, Oates, Fauna Brit. Ind., Birds, i. p. 418 



(1889) ; id. ed. Hume, Nests ^ Eggs Ind. Birds, i. p. 267 (1889) ; 



Sharpe, Hand-l. iv. p. 218 (1903). 



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