188 BIRDS FROM NIAS. 



broad at the base, much attenuated at the 

 nostrils, culmen strongly arched, 6,3 — 6,8 cm., 

 narrow and rounded, and hidden by bristles 

 at the base C. macrorhynchus. 



a. Corvus tenuirostris Moore. 



Hab. Malayan Peninsula, Nias, Sumatra, Borneo and 

 Timor '). 



The Nias bird agrees quite well with 10 specimens from 

 Sumatra , 6 from Borneo and 1 from Timor, which are in 

 the Leyden Museum. Amongst those collected by Dr. Klaesi 

 in the Highlands of Padang , there is one with a stouter 

 and straighter bill, but otherwise it does not differ from 

 other specimens. 



b. Corvus enca (Horsf.). 



Hab. Java, Celebes and Sula Islands. 



The Leyden Museum is in possession of 17 specimens 

 from Java, 6 from Macassar, 1 from Central Celebes, 11 

 from North Celebes , and 8 from the Sula Islands. I con- 

 sider them all to belong to the same species , as well as 

 those described by Brüggemann (Abh. naturw. Ver. Brem. 

 V, pp. 75 and 76, 1876) as n. sp. under the names C. 

 annectens , fallax and modestus , which all had been collected 

 in North Celebes by Mr. von Rosenberg, 



c. Corvus florensis Büttik. 



Corvus floremis Büttik. in Weber, Zool. Ergebn. Ill, p. 304 (1894). 

 Hab. Flores. 



d. Corvus macrorhynchus Wagl. 



"iCorvm corax Raffl. (nee L) Trans. Linn. Soc. XIII, p. 300 (1822). 

 Corvus macrorhynchus (apad Temm. MS. in Mus. Lugd.) Wagl. (part.) 



1) This species is not represented by Maldccan specimens in our Museum. 

 Notes from the Leyden Museum, Vol. XVIII. 



