16 NILS GYLDENSTOLPE, ZOOLOGICAL RESULTS OF THE SWEDISH ZOOLOGICAL EXPEDITIONS TO SIAM. 
these gentlemen were of utmost value for the succesfull carrying out of my plans and 
without their help the results of the Expedition would have been nothing of what they 
have turned out to be. To the Siamese Government I owe letters of introduction to the 
officials in the different Provinces through which I had the pleasure of travelling. 
Without such letters of introduction travelling in Siam is very difficult and almost im- 
possible but with them a journey in the wilderness is fairly easy. The Government also 
furnished me with an escort of some Gendarmes when I went through the more uncertain 
parts of the country. 
Several other persons and some of the large firms such as the Bombay, Burmah Trad- 
ing Corporation and the Borneo Company Limited helped me in several ways which 
help was most valuable. 
To the Siamese Government and then principally to H. R. H. Princzk DamMrone 
oF S1aMm and the Vice-Minister of the Ministry of Interior H. E. Paya Mana AmmMarT as 
well as to other gentlemen and officials both mentioned and unmentioned I herewith 
want to express my utmost gratitude. 
In the systematic list the following abbreviations are used: 
L= total length (measured in flesh.), 
W =length of wing, 
C=length of culmen. 
B= bill from gape. 
T =length of tail. 
Fam. Corvide. 
1. Corvus macrorhynchus. Waci. — The Jungle Crow. 
Corvus culminatus: Schomburgk p. 252. 
Corvus macrorhynchus: Williamson I p. 42; Williamson II p. 76; Barton p. 105; Robinson & Kloss p. 71; 
Grant p. 66; Gyldenstolpe I p. 18; Gyldenstolpe 11; Gyldenstolpe HI p. 164; Robinson II p. 150; 
Gairdner p. 148; Robinson III p. 761. 
The Jungle Crow is commonly distributed over the whole of Siam and does not 
avoid even the dense forests, though it is most abundant in or around towns and villages. 
Mr. SrRESEMANN has kindly informed me in a letter that the Siamese Jungle Crows 
probably belong to the race which has been described by ApAms (Proc. Zool. Soc. 1859 
p- 171) under the name of Corvus intermedius founded on specimens from Kashmire and 
Simla. This race according to STRESEMANN »seems to be of much the same colour as 
typical C. macrorhynchus which, howewer, always have the bases of the feathers pure 
white, while in C. intermedius they vary from pure white to pale grey. Young birds in 
their first plumage have the bases of the feathers brownish grey. The bill in C. intermedius 
is also somewhat differing from that one of C. macrorhynchus. In the first-mentioned 
form the bill is generally shorter and lower and the highest point is not at the base but 
at about the nasal opening». 
