1. GEOCICHLA. 169 



half dark olive-browii ; under wing-coverts, basal half dark olive- 

 brown, terminal half white; basal half of inner webs of the secon- 

 daries and many of the primaries white. Bill dark brown above, pale 

 horn-colour underneath. Wing with the third and fourth primaries 

 nearly equal and longest, second primary between the sixth and 

 seventh, bastard primary 0"9 to O'S inch. Legs, feet, and claws 

 pale. Length of wing 4-05 to 4-5 inches, tail 3*7 to 3-42, culmen 

 ]-0 to 0-!Jo, tarsus 1-3 to 1-22. 



Xotbing is known of the changes of plumage of this species. 



The ^'atal Ground-Thrush has only been obtained from the forests 

 of Natal, where it is supposed to be a resident. 



a. Ad. sk. Port Natal. Purchased. 



h, c, d. Ad. sk. Port Xatal. R. B. Sharpe, Esq. 



23. Geocichla peronii. 



Tui'dus peronii, VieiU. N. Dkt. d'Sist. Xaf. xx. p. 276 (1818) ; Gray, 



Hand-l. B. i. p. 260. no. 3793 (186!t)- 

 Tardus novaj-hollaudife, Less. Traite, p. 411 (1831, nee Lath.). 

 Geocichla rubiginosa, Sal. Midi. Verh. Nedeii. Ocerz. Bez. p. 172 (circ. 



1840) ; Bp. Consp. i. p. 268 (1850). 

 Turdus rubiginosus {Mull.), Gray, Gen. B. i. p. 220 (1847). 



General colour of the upper parts chestnut, slightly darker on the 

 head ; lores white ; no trace of eye-stripe ; ear-coverts mottled 

 white and chestnut, surrounded with black ; cheeks mottled black, 

 white, and chestnut; wings brown: lesser wing-coverts chestnut; 

 greater and median wing-coverts dark brown, edged with chestnut- 

 brown and broadly tipped with white; innermost secondaries 

 chestnut-brown ; many of the primaries with more or less white on 

 the outside webs ; tail-feathers brown on the inside webs and 

 chestnut-brown on the outside webs, outer feather on each side 

 broadly tipped with white. Chin, throat, centre of belly, thighs, 

 and under tail-coverts white ; sides of neck, breast, and flanks 

 chestnut ; axillaries white at base, nearly black at tip; lower under 

 wing-coverts black at base, white at tip ; basal half of inside web of 

 the secondaries and most of the primaries white. Bill dark brown 

 above and below, but paler at the base of the lower mandible. 

 Wing -n-ith the fourth and fifth primaries nearly equal and longest, 

 second primary between the sixth and seventh, bastard primary 

 I'O to 0-JS.) inch. Legs, feet, and claws pale. Length of wing 4-25 to 

 4-15 inches, tail 3-2.5 to 3-1, culmen I'O to 0-85, tarsus 1-4 to 1-3. 



There does not appear to be any difference in the plumage of the 

 sexes, nor is it known that summer differs from winter plumage. 

 Hhe Jirst pluhiaije of the >/oi'i);f is unknown. 



The Timor Ground-Thrush appears to be confined to the island of 

 Timor, where it is supposed to be a resident. 



rt. Ad. St. Timor. Zoological Societv. 



b-e. Ad. sk. Timor. A. K. Wallace, E»q. [C.]. 



