321 



xanthopus; P. bidens ; Strongylosoma subalbum; S. carneum; S. 

 subflavum; S. flavicoxis; Spirostreptus rubro- ductus. 

 Muka-Muka. Platyrhacus mirandus ; P. laticollis; P. verrucosus ; P. 

 submissus ; Spirostreptus erythropleurus ; Sp. pachyurus. 



Java. 



Buitenzorg: Zephronia nigriceps; Siphonorhinus pallipes ; S.angustus; 



Platyrhacus humberti; P. subalbus ; Strongylosoma pygmœum; S. 



weberi; S. atroroseum; Doratonotus armatus; Cryptodesmus we- 



beri; Cambala dentata; Spirostreptus javanicus; Sp. xanthonotus. 

 Tjibodas: Zephronia rufipes; Siphonophora flaviceps; Siphonotus for- 



mosus; S. elegans; Platyrhacus flavisternus ; Doratonotus armatus; 



Cryptodesmus concolor. 



Timor. 

 Kupang: Trigoniidus goësi. 



Celebes. 



Makassar: Strongylosoma coar datum; S. weberi; Trigoniidus goësi; 



Spirobolellus chrysogrammus. 

 Luwu: Spirostreptus proboscideus ; Bhinocricus toeberi; Spirobolellus 



chrysoproctus. 

 Bira: Rhinocricus eumelanus. 

 Island of Saleyer. Strongylosoma coarctatum ; Rhinocricus brachyproctus ; 



Trigoniulus goësi; Trigoniulus tachypus. 



Flores. 



Bari: Strongylosoma vinosum; S. coarctatum; Rhinocricus semicinctus; 



Trigoniulus goësi. 

 Maumerie: Siphonophora vittata; Lophodesmus pusillus; Rhinocricus 



xanthogonus ; Trigoniulus megaloproctus. 

 Keo: Strongylosoma coarctatum; Trigoniulus goësi; Trigoniulus reonus. 



III. Systematic description of the species. 



Order oniscomorpha , Pocock. 



Ann. Mag. Nat. Hist. (5), XX. pp. 283-295. 1887. 



Short robust Diplopoda, capable of rolling themselves into a ball. 

 The dorsal surface of the body covered by 12 or 13 tergal plates 



