160 CAPITONID^ TEICHOL^MA 



Genus II. TRICHOL^MA. 



Type. 

 Tricholsema, J. & E. Verr. Journ. Ornith. 1885, 



p. 132 T. hirsutum. 



Edge of the upper mandible distinctly toothed (except in T. 

 affinis) ; culmen rounded between the nostrils and curved from base 

 to tip ; chin angle with a few scattered bristles ; breast feathers with 

 shafts produced into long hair-like tips ; wings, feet, and tail as in 

 Lybhis ; plumage always with yellow spots. 



This genus, containing twelve recognised species, is confined 

 to Africa ; of the two found in South Africa, T. affinis is not 

 improbably merely the young of the T. leiicomelas. 



Pig. 52. — Breast feather of Tricholmma leucomelas. 



Key of the Species. 



A. Crown red ; bill strongly toothed T. leucomelas, p. 160. 



B. Crown black ; bill without or with only traces of 



a tooth T. affinis, p. 162. 



450. Tricholsema leucomelas. Pied Barbel. 



Bucco leucomelas, Bodd. Tabl. PI. Enl. p. 43 (1783). 



Bucco niger, Gmel. Syst. Nat. i, p. 407 (1788) ; Burchell, Travels, i. 



p. 318 (1822). 

 Lairaodon niger. Grill, K. Vet. Akad. Handl. Stockholm, ii, no. 10, 



p. 44 (1858) [Oudtshoorn] . 

 Laimodon leucomelas et unidentatus, Layard, B. S. Afr. pp. 232, 233 



(1867). 

 Pogonorhynchus leucomelas, Marshall, Monogr. Capit. p. 23, pi. 12 



(1870) ; Ayres, Ibis, 1871, p. 261 ; Gurney in Andersson's B. 



Damaraland, p. 217 (1872) ; Buckley, This, 1874, p. 367 [Pretoria] ; 



Barratt, Ibis; 1876, p. 200 [Marico] ; Sharpe, ed. Layard' s B. S. Afr. 



pp. 173, 811 (1876-84); Ayres, Ibis, 1877, p. 342 [Rustenburg] ; 



