NOTES ON MILLIPEDES. 17 



IV. Class Symphyla. 

 Family Scolopendrellidce. 

 Scolopendrella sp. incert. 



In May, June and July 1897, I found Scolopendrella? very 

 numerous in the Wang Na Garden at Bangkok ; they could 

 usually be found under flower-pots. They were most elegant 

 little creatures, about 5 mm. in length (not including the an- 

 tenna?), very active, and required careful catching to get them 

 alive and undamaged. We found the best way was to drive 

 then into a test-tube by means of a camel-hair paint brush. 



They were pure dead white in colour when alive. 



The antenna? are long, slender and conspicuous ; they 

 usually resemble a row of beads threaded on a string, but in 

 one specimen I examined the left antenna was normal and con- 

 sisted of 23 bead-like joints, but the right antenna was less than 

 half as long, apparently unjointed, enlarged and rounded at the 

 tip and covered with distally directed hairs (unlike the hairs on 

 normal antenna? which radiate from the centre of each " bead"). 

 These little animals can suspend themselves in the air by a silk 

 line, after the manner of spiders. 



On the 22nd November 1897, I found a Scolopendrella 

 under a log in the jungle near Muok Lek, in the Dang Phya 

 Phai. 



V. Chilopoda. 



The Centipedes, Class Chilopoda, are invertebrate animals 

 found in all temperate and tropical regions, carnivourous, active 

 and capable of giving a poisonous bite. Some are nearly one 

 foot (305 mm.) in length. 



Head. The head is distinct and has a pair of elongate 

 antenna? in front and four pairs of jaws on its lower surface. 

 The 4th pair are large and powerful and project forward 

 below the other pairs of jaws, so as to more or less conceal 

 them from view. The last segment of this 4th pair forms a long 

 fang with a minute hole in the tip, through which the poison is 

 exuded. 



Body. The body is elongated, very flattened in section 

 and consists of from 15 to over 121 segments all much alike in 

 structure. 



