4 The Graspedosomatidse of North America. 



Family Hetekochordeumid^, — genera Heterochordeuma, Pocockia. 

 Distribution: Ceylon and Sumatra. 



Family Striariid>e, — genus Striaria. 

 Dist7nbution : Temperate North America. 



Suborder Polydesmoidea. 

 Family Ammodesmid^, — ^genera Ammodesmus Doratodesmus {Doratonotus 

 Pocock, pre-occupied ) . 



Distribution : Tropical Africa and Asia. 



Family AuGODESMlDiE,— genera Augodesmus, Euryurus, Polylejjis. 

 Distribution: Tropical America. 



Family Campodesmid^, — genera Campodesmus, Cyrtodesmus. 

 Distribution : Tropical Africa and America. 



Family Chelodesmidje, — genera Chelodesmus, * Leptodesmus, Odonto- 

 peltis, Odontotropis, Priodesmus, Ehacliodesmus (Bhachis, is pre-occupied), 

 Strongylodesmus. 



Distribution : Troj)ical America. 



Family CRYPTODESMlDiE, — ^genera Aporodesmus, Cryptodesmoides, Crypto- 

 desmus, Poratia, Tricliopeltis. 



Distribution : Tropics of both hemispheres. 



Family Cyclodesmidje, — genus Cyclodesmus. 



Distribution: Tropical America. There seems to be little 

 ground for supposing that the Malayan genus Doratonotus is re- 

 lated to the Mexican genus Cyclodesmus. 



Family GoMPHODESMiDiE, — genera Astrodesmus, Aulodesmus, Gomphodes- 

 mus, Harmodesmus, Marptodesmus, Sphenodesmus, Tycodesmus. 

 Distribution : East Tropical Africa. 



Family HAPLODESMiDiE, — genus Haplodesmus {Haplosoma YevhceS, pre- 

 occupied). 



Distribution: Amboina. 



Family Oniscodesmid^, — ^genera Cyphodesmus, Oniscodesmus, Sphserio- 

 desmus. 



Distribution : Tropical America. 



Family OxYDi<;SMiDiE, — genera Anisodesmus, Isodesmus, Mimodesmus, 

 Orodesmus, Oxydesmus, Scytodesraus, Tylodesmus. 

 Distribution : Tropical Africa. 



* Pores 13, on segments 5, 7, 9, 10-19, latero-inf erior ; sternum of fifth seg- 

 ment of male with four processes, that of the sixth with two ; male legs with 

 a large process from the apex of the jienultimate joint. Type Chelodesmus 

 marxii. U. S. National Museum. 



