1. GEOCICHLA. 159 



pale brown. Length of wing 4'4 inches, tail 3'05, cnlmen 0'95, 

 tarsns 1-12. 



Nothing is known of the changes in the colour of the plumage 

 which may be caused by age, sex, or season. 



The New-Guinea Ground-Thrush is supposed to be peculiar to 

 that island, where it is probably a resident. 

 a. Ad. sk. S.E. New Guinea. A. Goldie, Esq. [C.]. 



10. GeocicMa imbricata. 



Zoothera imbricata, Layarcl, Ann. Xat. Hist. xiii. p. 212 (18.54); Jerdon, 



B. Ind. i. p. .509 (18G2). 

 Oreocincla nilgliii-iensis, Bh/th, apud Jerd. Ibis, 1872, p. 1.39, apud 



Holdsw. P. Z. S. 1872, p. 446. 

 Oreocincla imbricata {Lai/ard), Hume, Stray Feath. 1873, p. 437; 



Legge, Birds of Ceylon, p. 455, pi. xix. fig. 2 (1879). 

 Oreocincla gregoriana, Nevil, Stray Feath. i. p. 437 (1873). 



In the adult male in sjrrinrj plarnage the general colour of the 

 upper parts is dark olive- brown, each feather ha^•ing a transverse 

 terminal crescent- shaped black band ; some feathers, especially on 

 the head, have an obscure, pale ocbraceous, transverse subterminal 

 band ; wing-coverts and innermost secondaries shading from dark 

 olive-brown on the inside webs to ocbraceous on the outside webs, 

 but, with the exception of the primarj^-coverts, wanting the black 

 terminal bands ; lores pale grej- ; no trace of eye-stripe ; quills brown, 

 margined with ocbraceous on the outside webs ; four central and 

 the two outside tail-feathers olive-brown, the remaining three on 

 each side very dark olive-brown ; outside tail-feathers tipped with 

 white, and all more or less obscurely barred. Underparts ocbra- 

 ceous buff, each feather with a narrow, transverse, terminal crescent- 

 shaped black band, nearlj- obsolete on the chin, centre of belly, and 

 under tail-coverts ; axiUaries, basal half white, terminal half black ; 

 under wing-coverts, basal half black, terminal half white ; basal 

 half of the inner web of the secondaries and of man}' of the primaries 

 nearly white. Bill dark brown, paler at the base of the under 

 mandible. Wing with the third, fourth, and fifth primaries nearly 

 equal and longest, second primary between the fifth and sixth, or 

 sixth and seventh, bastard primary 1-28 to 1-15 inch. Legs, feet, 

 and claws greyish brown. Length of wing 4-9 to 4-5 inches, tail 3-3 

 to 2*75, culmen 1-2S to 1*15, tarsus 1-15 to 1-1. 



There appears to be no difference in the colour of the sexes. 

 Young in Jirst plumage and hirds of the year are unknown. 



The Ceyloncse Ground-Thrnsh is confiued to the island of Ceylon, 

 breeding in the mountain-forests and descending into the jungle 

 during the cold season. 



. Ad. St. Ceylon. Purchased. 



11. GeocicMa mollissima. 



Tm-dus moUissimus, Blyth, J. A. S. Deng. xi. p. 188 (1842); Gray, 

 Cat. Mainm. 6(c. Xepal Coll. Hodgson, p. 80 (1840) ; Gray, Gen. B. 



