54 NOVITATBS ZOOLOOICAB XXV. 1918. 



impression, that it ig a smaller form. This is, in my opinion, incorrect. It is true 

 that the form which breeds in Europe, from Scotland, Holland, and Northern 

 Qerniany through Scandinavia, North Russia, and, apparently, as far north as 

 Kolguev, Waigats, and Nova Zemlya, is smaller' than the Siberian forms ; but 

 the name of the European form must be E. a. alpina, because in 1758 Linnaeus 

 described it from Lapland, and, as far as I can see — and Miss Jackson, after 

 longjand careful studies, agrees with me — there is no difference between Dunlins 

 from Lapland, Norway, Scotland, and Riigen. There is, however, a great 

 individual variation in Dunlins, and some specimens have much longer bills than 

 others. It is quite possible that in winter Siberian Dunlins appear in Europe, 

 among the European form. The subspecies from Eastern Siberia is very distinct 

 and must be called Erolia alpina sakhalina {Scolopax sakhalina VieUlot, Nouv. 

 Diet. d'Hist. Nat. iii. p. 359. 1816, from Sachaliu, ex Tilesius, Atkis zu Krusen- 

 stern's Beise, pi. 84 — cf. Novitates Zoologicae, 1916, p. 95. The status of the 

 form from Western Siberia is as yet uncertain ; birds from there seem to be 

 generally larger than E. a. alpina, such small birds as in Europe do, apparently, 

 not occur in West Siberia. If separable, the West Siberian bird must be called 

 Erolia alpina pusilla (Falk) : Scolopax pusilla Falk, Beytr. z. topogr. Kennt. Buss. 

 Reichs. iii. p. 371,. 1786, " Isettische Provinz," i.e. near the Isset, in the Govern- 

 ment of Tomsk in West Siberia. 



300. Pelidna calidris Brehm = Erolia alpina alpina. 

 Palidrta calidris Brehm, \fforarf6. Naturg. Vog. Deutschl. p. 663 (1831 — " Bei Neapel "). 

 Type : $ ad., Napoli, 10. xi. 1819. 



301. Pelidna gracilis Brehm = Erolia temminckii. 

 Pelidna gracilis Brehm, Vogdfang, p. 318 (1855 — March 1850, Upper Egypt, Oskar Brehm leg). 

 Type: ? Upper Egypt, 24. iii. 1850. Oskar Brehm leg. 



302. Trii^a littoralis Brehm = Erolia maritima maritima. 

 Tringa littoralis Brehm, Handb. Naturg. Vog. Deutschl. p. 652 (1831 — " Island und andere nordliche 

 Lander "). 



Type : <? ad., Iceland, 20. vi. 1820. 



303. Calidris americana Brehm = Calidris leucophaea. 

 Calidrik americana Brehm, Vogelfang, p. 318 (1855 — America). 

 Type : S hieme, Brazil. 



304. Calidris Miilleri Brehm = Calidris leucophaea. 

 Calidris Miilleri Brehm, Vogelfang, p. 318 (1855 — " Wandert durch Griechenland, ist sehr selten an 

 der deutschen Ostseekuste "). 



Type : (J ad,, Attika, v. 1845. 



305. Pelidna megarhynchos Brehm = Limicola falcinellus falcinellus. 

 Pdidna megarhynchos Brehm, Vogelfang, p. 317 (1855 — "Afrika"). 



Type : <J in worn autumn plumage, said to be from the Senegal. 



