150 TURDID.F,. 



C. Upper parts witlioiit spots. Uaderparts spotted 



on the throat, breast, and flanks with fau-shaped 



or diagonal spots. Ciilmen longer than the 



head. (Subgeneric group Zoother^e.) 



e. Culmen longer than the tarsus. 



/'. Upper parts dark slate-grey 7nonticola, p. 161. 



ff'. Upper parts russet-brown man/inafa, p. 162. 



/. Culmen shorter than the tarsus androineda, p. 162. 



D. Upper parts without spots, except on the wing- 



coverts, many of which are nearl}' black, with 

 very conspicuous white tips. No trace of eye- 

 stripe. Underparts frequently spotted on the 

 throat, breast, and flanks. Sexes alike. 



(Subgeneric group Turduli.) 

 g. Bill short, the height at the nostrils nearly 

 half the length of the culmen. 



h'. Chin white princei, p. 164. 



i'. Chin dark cinereous cumpsonota, p. 16o. 



li. Bill moderately long, the height at the nos- 

 trils less than one third the length of the 

 culmen. 

 k'. Breast and flanks spotted. 

 (■■". Throat black. 



g'". Upper parts chestnut, in strong con- 

 trast to the nearly black wings and tail, erythronota, p. 165. 

 A'". Head and nape chestnut. Back, rump, 

 wings, and tail brown or slate-grey. 

 «*. Greatervring-coverts with white tips interpres, p. 166. 

 6'. Greater wing-coverts uniform dark 



brown avensis, p. 167. 



d". Throat white, more or less obsciu'ely 

 spotted with Ijlack. 

 i'". Length of wing 3| to 4 inches. Upper 

 tail-coverts russet-brown. Second pri- 

 mary much shorter than the se^■euth. spiloptera, p. 167. 

 k'". Length of wing 4| inches. Upper tail- 

 coverts olive-brown. Second primary 

 much longer than the seventh ...... guttata, p. 168. 



/'. L'^^ndei-parts unspotted. 



e". Chin and throat white, or nearly so. 

 V". General colour of the upper parts chest- 

 nut peronii, p. 169. 



m'". General colour of the upper parts 



russet-brown hivittata, p. 169. 



f". Chin and throat orange-chestnut. 

 n'". Back olive-brown. 



c*. Forehead dark olive-brown gunifit/i, p. 170. 



dK Forehead orange-chestnut piaggii, p. 171. 



o'". Back russet-brown crossleyi, p. 171. 



E. Upper parts slate-grey, each feather with obscure 

 darker margins. Wing-coverts pale slate-grey, 

 with or without white tips. No trace of eye- 

 stripe. LTnderparts unspotted. Sexes alike on 



undei-parts. (Subgeneric gi-oup Geocichl^.) 



i. Median wing-coverts tipped with white. 



m. Chin and throat white. Ear-coverts white, 



crossed by two diagonal brown bars .... cganonotus, p. 171. 



