AND SOME ALLIED GENERA. 241 



One specimen from Wellesley (Malacca) , three from Su- 

 matra, four from Banka, and six from Borneo. 



10. Laedorusa pusilla. 



Pycnonotus simplex (nee Less.) Bp. Consp. I, p. 263 (1850); Büttik. 



N. L. M. 1887, p. 61. 

 Pijcnonotus pusillus Salvad. Ucc. Born. p. 200 (1874); Sharpe, Cat. 



B. VI, p. 155, pi. X (1881); Oates, B. Br. Ind. I, p. 293(1889); 



Murray, Avif. Brit. Ind. II, p. 43, pi. (1889). 

 Pycnonotus Salvadorii Sharpe, Cat. B. VI, p. 401 (1881). 



Hab. From Southern Tenasserim through Malacca to 

 Sumatra and Borneo. 



Five specimens from Sumatra and one from Borneo. 



Genus Pachycephalia^ws y n. g. 



Type: Pachycephnlixus sinensis (Gm.). 



General appearance more pachycephaline than pycnono-, 

 tine. Head thick , feathers on the crown black , equally 

 lengthened , thickly set and silky , not forming a distinct 

 crest ; a collar round the hind neck purplish brown , dis- 

 tinct from rest of upper surface, which is gray, all the 

 feathers , quills and tail-feathers included , edged with olive- 

 yellow, lower surface white, laterally also edged with yel- 

 low , a broad purplish brown band across the chest , tail 

 nearly square, tarsus longer than culmen, wing longer 

 than tail. — Two species known. 



Range: From the Yangtze Kiang through South China 

 into Siam, Formosa, Hainan and Naochow, 



Key to the species. 



a. Eorehead and centre of crown black, nape from behind 



tlie eye white sinensis. 



b. Entire crown black hainanus. 



1. Pachyceplialixus sinensis. 



Muscicapa sinensis Gm. Syst. Nat. I, p. 942 (1788). 

 Pycnonotus sinensis Blyth, J. A. S. Beng. XIV, p. 569 (1845); 

 Sharpe, Cat. B. VI, p. 149 (1881). 



Notes from the Leyden Museum, "Vol. XVII. 



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