NOTES ON MILLIPEDES. 35 



elevation, given me by Mr. L. Brown) ; three from Johore 

 Balnu, and two from the foothills of Gunong Pulai, Johore. 



Colour (in life) :• very rich dark olive green. The poison- 

 vesicles in the Gunong Pulai specimens were white. 

 Size. 



$. from front of mandibles to tip of sting. 102 mm. 

 Pectinal teeth, 10+17. 



$ . from front of mandibles to end of penultimate segment, 

 107 mm. Pectinal teeth, 17+17. 

 District. 



Burma, Malay Peninsula, Sumatra (?). 



7. Palamnceus silenus, Simon. 



Siamese, "Mengpon chang" = Elephant Scorpion. 

 Of this fine species I obtained four specimens from Bang- 

 kok, three from Tahkamen, one from near Kabin, one from near 

 Raheng, and thirty one from Chantaboon. It seems to be 

 strictly nocturnal; at night roaming about for food, and lying 

 hid by day : at Chantaboon I found most by digging in the soil 

 4 or 6 inches deep, under fallen logs, to find their burrows, 

 which the scorpions often tried to escape along, but we followed 

 them (digging up the soil) and eventually secured them. In 

 one spot (in Jan. 1898) we found about ten individuals, all of 

 about the same size, huddled up close together in a hole in the 

 ground. 



Colour (in life.) shining rich dark green. 

 Size. A good specimen had the following dimensions : — 

 Length, from front of mandible to point of sting — 135 

 mm. (about 5J inches). 



Length, of cephalothorax (in median line) — 18 mm. 

 Width of cephalothorax 10 mm. 



Length of tail 6'6 — 



,, ,, humerus 16 — 



,, ,, brachium 10 — 



,, ,, pincer (to end of fixed digit) 35 — 

 ,, moveable digit 22 — 



Width of hand 1 6 — 



Pectinal Teeth vary in number from about 15 to about 18 

 on each side. 



