PEOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 465 



Turdvsiliacttg, 



TuEDTJS Lin. 



<1758.— TMrdMs Lin. Syst. Nat., x ed., i, p. 168. 



X 1816.— ikferyZa Leach. Cat. Mamm. Birds, Brit. Mus., p. 20. 



>1829. — Copsichus Kaup. Entwg. Eur. Thierw., p. 157 (uec Copsychus Wngl., 



18i7). (Type iorquatus.) 

 ^■1829.— Iococo8sijp1iu8 Kaup. Op. cit., p. 145. (Type viscivorus.) 

 '^182d.—Arceuthornis Kaup. Op. cit., p. 93. {Ty^pe pilaris.) 

 >1829. — CicMoides Kaup. Op. cit., p. 153. (Type atrogularis.) 

 yi850.—Thoracocincla Reichb. Av. Syst. Nat., pL liii. (Type torquatus.) 

 1^1854.— Cichloselys Bonap. Nat. Coll. Delattre, p. 29. 

 '^1856.— Cychloselys Bonap. Catal. Parzud., p. 5. 

 > 1856.— PZawes^icMS Bonap. nt supra (nee 1854). 

 Xl860.—Iliacu8 Des Murs. Tr. Ool. Ornith., p. 292. 

 Xl8Q9.—Hijlocichla G. E. Gray. Haudb. of Birds, 1, p. 253. 



Larger, spotted Thrushes, with wings almost as in the foregoing 

 genus. The feathering of the nasal region and the form of the bill are 

 also the same, with the exception that the latter is stouter and higher. 

 Tarsus stout and of moderate length, never being longer than two- 

 eighths of the wing, but longer, however, than the commissure : out- 

 stretched legs fall far short of the tip of the tail. 



Remarks. — The genus Turdus thus restricted forms a natural and 

 rather well defined group, embracing, besides a few additional species 

 from Eastern Asia, the following members of the west Palaearctic oruis: 

 T. viscivorus, jpallidus, torquatus, pilaris, ohscurus, iliaciis, atrogularis, 

 fuseatus, naumanni, and ruficollis. 



This genus, which is a strictly Palaearctic one, is entitled to admission 

 into a synopsis of the American genera only on account of the acci- 

 dental occurrence of Turdus iliacus in Greenland. 



Hesperocichla Baird. 



=1858.— /xoreus Baird. Birds of North Amer. p. 219 (nee Bp. 1854). 

 =1864. — Hesperocichla Baird. Eev. Amer. Birds, p. 12. (Type nixvia.) 



Body stout, only very little spotted. Wing much as in the foregoing 

 genera, the second primary, however, being considerably shorter than 

 Proc. Nat. Mus. 82 30 Feto. 13, 1883, 



