the Banks of the Lena River. 433 



blackish brown without rufous. They cau only be the young 

 of Turdus dubius, but no parent birds were obtained. 



45. Turdus pilaris L. 



Turdus pilaris Linnaeus, Syst. Nat. ed. x. p. 168 (1758 : 

 '■ Habitat in Europa." Typ. hoc. Sweden). 



Common at Yakutsk and Prokofskoa. Young ready to 

 leave the nest 20. vi. 1903. (Nos. 90, 91, 111, 118, 121, 

 128, 137, 142, 154, 360, 361.) 



46. Cyanecula suecica suecica (L.). 



Motacilla suecica Linnaeus, Syst. Nat. ed. x. p. 187 (1758 : 

 " Habitat in Europae alpinis "). 



2 <J ad., 5 ? , 2 juv. From Bulun to the mouth of the 

 Lena. (Nos. 182, 189, 236, 237, 240, 250, 251, 297, 

 313.) 



These are typical suecica, not the paler " discessus " of 

 Madarasz. 



[Between the ball of the eye and the skin there was living 

 a long yellow worm quite f" in length : other examples of 

 this species had a similar worm in the same region. Adult 

 males I found to be very shy.] 



47. Sylvia curruca (L.). 



Motacilla curruca Linnaeus, Syst. Nat. ed. x. p. 184 (1758 : 

 " Habitat in Europa." Typ. loc. Sweden). 



3 £ , 1 2 ad. Ustkutsk, Olekminsk, and other places. 

 " Bill brown. Legs bluish-slate-coloured. Iris dark brown." 

 (Nos. 34, 60, 74, 373.) 



It seems to mc that Siberian Lesser Whitethroats are 

 indistinguishable from European S. curruca. According to 

 the books they should be S. uffinis Blyth, but I do not think 

 that this is correct. 



48. Phylloscopus fuscatus (Blyth). 



Phillopnevste fuscata Blyth, Journ. As. Soc. Bengal, xi. 

 p. 113 (1842: Calcutta). 



3 £ ad. Olekminsk, 18. vi., 6. viii. 1903, and 100 miles 

 above Yakutsk. " Legs pale brown ; upper mandible 



