8 ARKIV FÖR ZOOLOGI. BAND 8. NIO 23. 



Gibbons are very tough, convulsively clinging to a branch 

 even when mortally wounded. 



Skull measurements. 



o* 9 



Total length = 104,9 mm. 96, o mm. 



Basicranial length = 74,2 » 68,3 » 



Condylobasal » = 86,5 » 77,1» 



Occipitonasal » = 90, o » 81, o » 



Zygomatic breadth « = 72,5 » 65,4 » 



Greatest » of brain-case = 59, o » 56,5 » 



Least postorbital breadth = 46, o » 43,8 » 



» interorbital width = 12,4 » 10,4 » 



Breadth of snout across last premolar . . . — 30,8 » 27, o » 



Front of canine to back of m 3 = 32,4 » 31, o » 



Length of palate mesially = 40, o » 37,6 » 



Breadth across middle of orbits = 64,5 » 59,2 » 



Length of upper molar series = 25,2 » 24,3 » 



» » lower » » ......= 30,6 » 29,0 » 



6. Nycticebus cinereus A. M. Edw. — During my 

 journey I only observed Slow Lemurs in capitivity. At Bang- 

 kok I saw, however, several specimens kept both by Euro- 

 peans and natives. All the specimens observed belonged to 

 the above-mentioned species and not to the allied »Nycticebus 

 tardigradus» auct. nec Lin. which is said by many authors to 

 inhabit several parts of Siarn. My friend Doctor B. Högbom 

 saw some specimens during his travels in Northern Siarn, but 

 according to him, these vvere also very light-coloured and pro- 

 bably Nycticebus cinereus too. 



The type of this last-mentioned species comes from Siarn 

 and the distribution is given by Milne Edwards to Siarn 

 and Cochin China. 



The natives are rather af raid of the »Ling-lom» and be- 

 lieve it to be of supernatural powers, especially producing 

 wind. Its name translated to English also means »Wind- 

 monkey». 



7. Pteropus sp. — Large flocks of Flying-Foxes were 

 observed several times during my stay at Bangkok, but as 

 I did not collect any specimens there I am not able to give 



