KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 56. N:0 2. 79 
144. Hypothymis azurea prophata. Oszru. — The Black-naped Blue Flycatcher. 
Hypothymis azurea prophata: Gyldenstolpe I p. 37. 
Hypothymis azurea; Robinson I p. 99; Robinson II p. 148; Miller p. 363; Gairdner p. 149. 
Hypothymis azurea coeruleocephala: Robinson III p. 744. 
@ Koh Lak 12 1914. L = 155 mm.; W = 67,6 mm.; T = 79,6 mm.; Tarsus = 13 mm. 
A female specimen, collected at the neighbourhood of Koh Lak in the Siamese 
Malaya, appears to belong to this race. Unfortunately I have only been able to compare 
my specimen with some other specimens from Java in the collections of the Royal Natural 
History Museum in Stockholm, but these specimens, which according to locality ought 
to belong to this race, are absolutely identical as to size and colouration with my own 
specimen. 
145. Hypothymis azurea styani. Harrc. 
Hypothymis azurea: Gyldenstolpe II; Gyldenstolpe III p. 169; Williamson I p. 43; Williamson II p. 209; 
Robinson & Kloss p. 53. 
Sax Locality Date Length | Wing Tail Culmen | Tarsus 
mm. mm. mm mm. mm 
ou Koon Tan 2215 1914 155 72 78 10 13,6 
rou Koon Tan 22/5 1914 150 72 77 10,5 13,5 
oO Koon Tan 3/6 1914 155 7 78 10,3 13,6 
of Koon Tan 5/6 1914 153 74 78 10,1 13,5 
ou Koon Tan °8/, 1914 156 70 72,3 10,4 14 
oa Bang Hue Pong 27/5 1914 155 75 77 10,3 13,8 
fof Pak Koh 418/, 1914 150 Tl 78 9,5 12,5 
of Pak Koh 24/3 1914 145 71,5 76 10 13 
oO Chum Poo 7/6 1914 158 71,5 78,5 10,3 13 
fot Doi Par Sakeng 18/7 1914 152 70 77 11,2 13,6 
g Koon Tan ®/s 1914 145 70 75 10 13 
2 Koon Tan 5/6 1914 160 70 78 10 13,3 
2 Koon Tan 18/5 1914 145 67,7 66 10,2 13,5 
2 Koon Tan 18/5 1914 140 68,3 67 10 13,6 
Q Koon Tan 8/5 1914 156 69 74 ll 13,2 
Q Koon Tan 29/4 1914 160 70 73 lz 13,3 
In my former paper on the Birds of Siam (Kungl. Svenska Vetenskapsakademiens 
Handlingar, Band 50. N:o 8 p. 37) I have referred the species of the Black-naped Blue 
Flycatcher inhabiting Northern Siam to H. a. prophata OBERH. 
During my last journey I collected a large series of this beautiful Flycatcher at 
different parts of Northern Siam. 
STRESEMANN has recently (Nov. Zool., Vol. 20 1913 p. 293—297) given a review 
of the forms of Hypothymis azwrea, Bopp. based on a very large material. 
He considers H. a. styant Hartt. as to inhabit Siam and the adjoining countries 
to the east, west and north. In Lower Siam, however, another race: OBERHOLSERS H. a. 
