NOTES ON MILLIPEDES. 15 



genus allied to Acanthodesmus ; all the specimens being now 

 in the British Museum I am unable to describe them here. 

 Every individual (thirteen were collected) of one species of 

 Acanthodesmus had a faint but distinct and pleasant smell, like 

 "vanilla" or "bitter almonds." These Millipedes are all very 

 slow in their movements and easily caught. 



20. Practodemus ridleyi, Pocock. l.c.s. p. 438. 



The type specimen, a female, was obtained by Mr. H. N. 

 Ridley in Singapore. Another species of Phractodemus, P. 

 subrittatus (Peters) has been recorded from the island of Shiga. 



21. Anoplodesmus sp. 



I found one specimen of this genus on rotten wood in the 

 Botanical Gardens. Penang, 21st Nov. 189G. Colour, upper 

 parts shiny black, protuberances at sides bright yellow. Lower 

 surface and legs, reddish brown. 



Family Strongylosomatidcr. 



Millipedes of small size, reaching 35 mm. in length, occur- 

 ring in tropical America, Africa and Asia, and also in Europe 

 (England). 



22. Orthomorpha coarctata (Saussure). 



A widely distributed species in the East Indies, I have 

 met with it in Singapore, Kedah and Bangkok. In the latter 

 place during the month of May, June and July I had 

 opportunities of watching the development of individuals. The 

 smallest I got were 2 mm. in length, cylindrical in section, 

 had 19 segments, were covered with fine bristles of hair and 

 were pure white in colour, except for a pair of reddish-brown 

 spots above the base of the antennae. As the animal grows 

 the hind portions become dark first, and upper greyish brown, 

 then the head and forepart become a reddish- brown, the centre 

 portion gradually following suit ; these changes of colour will 

 be observed in animals of from 8 to 12 mm. in length. In 

 individuals of 10 mm. long the body is still cylindrical but the 

 lateral processes are becoming pronounced, and the general 

 colour is now pale yellow, the dorsal plates being pale reddish 

 brown ; there is also a reddish-brown patch on the head at the 



