50 NILS GYLDENSTOLPE, THE SWEDISH ZOOLOGIOAL EXPEDITIONS TO SIAM. 



Acanthion klossi. Thos. 



The Porcupine collected at Meh Lem in Northern Siarn on the lOth of March 1912 

 and recorded by ine under the name of Hystrix bengdlensis Blyth. (Arkiv för Zoologi, 

 Band 8. No. 23. 1914 p. 20) ought to be referred to the species which has recently been 

 separated and described by Thomas under the name of Acanthion klossi (Ann. Mag. Nat. 

 Hist. ser. 8. vol. 17. 1916 p. 139). This species, the type of which came from Tenasserim, 

 may be separated from it nearest ally Acanthion brachyurus Linn. by its shorter frontals 

 and its longer nasals. Acanthion bcngalcnsis Blyth seems to be a somewhat doubtful 

 species of which no modern specimens are to be had. In Acanthion klossi the quills are 

 stated by Thomas to be almost white with a black ring about the middle. This state- 

 ment agrees well with the specimen in my Siamese collection, in which the nasals also 

 are more than twice the length of the frontals (measured mesially). 



During my last journey in Siarn no Porcupines were obtained, but I several times 

 both in Northern Siarn and in the Siamese Malaya found loose quills. As far as I can 

 remember they were all of a whitish colour with a black ring. 



Therefore it seems as if Acanthion klossi was distributed at least as far down in 

 the Malay Peninsula as to about Lat. N. 12°. In the southern parts of the Malay Penin- 

 sula another species occurs the true Acanthion brachyurus of Linn^us. 



Elephas maximus. Linn. 



Wild elephants seemed to be fairly common in the jungles on the boundary between 

 Siarn and Tenasserim to count from the numbers of tracks, both fresh and old, which 

 were observed at these localities. 



Even in the northern parts of the country as for instance in the wild and uninhab- 

 ited country at the neighbourhood of Doi Vieng Par numbers of footprints were ob- 

 served now and then during my excursions. No specimens were, however, encountered 

 as I did not waste the time following up these huge animals which are strictly forbidden 

 to be shot without the special permission of the King. 



Rhinoceros sumatrensis. Cuv. 



According to the natives the smaller one-horned Rhinoceros is the most common 

 form of Rhinoceros occuring in Northern Siarn. 



The two-horned Rhinoceros is, however, also stated to inhabit the same districts. 

 The neighbourhood of Chieng Hai is considered as one of the best hunting stations for 

 these large Pachyderms, and during my stay there I also several times observed their 

 tracks in the vicinity. Unfortunately I visited Chieng Hai in the middle of the rainy 

 season and the surrounding country was all flooded. Chieng Hai is situated on a large 

 plain chiefly covered by high grass and reeds which makes travelling very difficult. 

 However, I once tried to get a Rhinoceros, the fresh tracks of which we found. Wefollwed 



