58 Capt. G. E. Shelley on the 



f\ Bill buff 21. L. palUdirostris. 



d^. Throat white. Bill red or yellow. 

 g^. Above browu, wing-coverts spotted 

 with white. 

 yK Bill red. 



//'. Head darker ; forehead grey, like 

 the crown. Cheek and ear- 

 coverts more or less shaded with 

 grey. The dark bar on the outer 

 tail-feather nearly always very 



distinct 22. L. erythrorhynchi(s. 



h''. Head paler ; a broad white fore- 

 head. Cheeks, ear-coverts, and 

 entire under surface of the neck 

 and body uniform white. Outer 

 tail-feathers uniform white in 

 one specimen, and with only a 

 slight browu patch in the other, 

 indicating where the bar occurs 



in L. erythrorhynchus 23. L. damarensis . 



h\ Bill yellow. 



t'. Dark markings, when present on 

 the fore neck and breast, con- 

 fined to shaft-stripes. Bare skin 

 round the eye grey ; bare skin 

 on the throat generally grey . . 24. L.JJdvirostris. 

 y*. Dark markings on the fore neck 

 and breast always present and 

 confined to the edges of the 

 feathers. Bare skin of the head 

 and throat yellow, wdth no shade 

 of grey. 

 _;'. The white on the two pairs of 

 outer tail-feathers partially 

 crossed by an imperfect dark 

 band, very much narrower 

 than the white ends to these 

 feathers. The outer feather 

 always with a largish dark 



basal portion 25. L. leiicomelas, 



A". The white on the three pairs 

 of outer tail-feathers crossed 

 by an even broad dark band, 

 not narrower than the white 

 ends to these feathers. Tiie 



