30 NILS GYLDENSTOLPE, THE SWEDISH ZOOLOGICAL EXPEDITIONS TO SIAM. 



Felis temminckii. Vjg. & Horsf. 



The Golden Bay Tiger Cat is apparently ratlier rare in Sia ni. A fine male specimen 

 was, however, canght in a trap near Pa Hing on tlie 15th of Mareh 1914. The trap was 

 put ont in an evergreen jungle in order to catch a tiger and the bait consisted of a bullock- 

 head. 



According to the natives this species is very fierce and it will even attack a tiger 

 if they happen to meet at the same kill. In Siamese it is called »sua fai». 



My specimen, which is an adult male, measures from tlie tip of the nose along curve 

 of back to the root of the tail 830 mm.; tail = 420 mm. 



Skull measurements: 



Greatest length = 144, o; basicranial length = 120,r>; condylobasal length = 129,o; 

 width of brain case == 55,8 ; length of nasals mesially = 30,o; breadth of nasals anteriorly 

 = 18,s; Least interorbital breadth = 23,2; least postorbital breadth == 30,i; length of 

 bullae = 30,5; maxillary t ooth.ro w = 42,o; length of upper sectorial = 16, i mm. 



Petaurista lylei. Bonh. 



Proc. Zool. Soc. 1900. p. 192. 



<£ Pak Koli, Northern Siarn, 2 % 1914. — $ Pak Koh, Northern Siarn, ls / 3 1914. — Nose to vent -= 

 195 mm.; tail = 605 mm.; ear = 55 mm. — 5 Koon Tan, Northern Siarn, --j:, 1914. 



During my journey in Northern Siarn I was fortunate enough to get three speci- 

 mens of this large and beautiful Flying Squirrel. They are apparently never on the move 

 during daytime but appear just at dusk. They are then rather easy to get, especiallv 

 during moonlight nights, because of their habit always to keep to certain trees which 

 are rich in eatable fruits. It was very interesting to look at them when they were moving 

 from tree to tree. They then always climbed up to the top of some high tree from which 

 they suddenly »flew» away to another tree usiug their large parachute, which they kept 

 quite steady. As a rule they could »fly» for about 50 metres but they were of course 

 always sinking down considerably. 



Tlie two specimens obtained at Pak Koh fairly well agree with the description given 

 by Bonhote for the type. Some slight differences are, however, to be noticed. The 

 drawing of Petaurista lylei in the Proceedings of the Zoological Society 1900 does not 

 seem to be quite correct, at least the specimens in my collection do not agree very well 

 with it. In my specimens the upper parts of the body are not of such a whitish grey 

 colour as is shown on the plate, nor are the white spöts on the sides of the head very 

 well-marked. 



Another specimen obtained a few miles f urther north and at an higher altitudc some- 

 what differs from the other two specimens. In this specimen the underparts of the body 

 and the parachute are decidedly more rufous, except the middle of the abdomen which 

 is almost white. The area surrounding the forelegs is pure black almost forming a large 

 triangulär spöt. The edge of the parachute is not black for its whole length, the black 



