CHAMBERLIN : MYRIOPODA OF THE AUSTRALIAN REGION. 75 



b. Spiracles on third, fifth, eighth, tenth, twelfth, and fourteenth somites. 



Tliirteenth tarsi biarticulate Anopsobius Silvestri. 



bb. Spiracles only on somites three, ten, and twelve. 



c. Tliirteenth tarsi entire Dichelobius Attems. 



cc. Thirteenth tarsi biarticulate Tasmanobius, gen. nov. 



Genotype. — T. relictus, sp. nov. 



179. Tasmanobius relictus, sp. nov. 



Ti-PE.— M. C. Z. 1,894. Tasmania (G. H. Hardy). 



Color nearly chestnut throughout, legs and antennae scarcely paler. 



Head narrowed forward in front of middle; a deep median longitudinal 

 sulcus, hairs sparse and puncta few and indistinct. Antennae short, reach- 

 ing upon third segment; composed of only fourteen articles. 



Presternum narrow anteriorly; teeth small and pale, 5 + 5. 



Claws of legs long and slender, the accessory claws minute or obsolete. 

 Coxae of fifteenth legs produced distally into a spinous process as in Dichelo- 

 bius. 



Coxal pores on last two pairs of coxae; 2, 2. 



Gonopods of female of usual general structure; claw long and acute; basal 

 spines 2 + 2, rather stout, subconical. 



Length, 8.5 mm. 



180. Dichelobius flavens Attems. 



Fauna sudw. Austr., 1911, 3, p. 154, fig. l-lO.i 



Locality. — W. Australia: Eradu, Lion Mill, Jarrahdale, Donny- 

 brook, Gooseberry Hill.^ 



181. Anopsobius neozelanicus Silvestri. 



Boll. Lab. zool. Portici, 1909, 4, p. 45, fig. IV, l-5.i 



Localities. — New Zealand: Wellington,^ Hokianga,^ Taumarunni, 

 Day's Bay near Wellington, Kaori Forest near Swainson, and Plum- 

 merton (W. M. Wheeler). 



LiTHOBIIDAE. 



Australobius, ge7i. nov. 



Related to Lithobius sens. str. Antennae with but twenty-one or twenty- 

 two articles in tjT)e. OceUi few and large, in type 1 + 2, 2; single ocellus 

 distinct, enlarged. Prosternal teeth numerous (e. g., 5 + 5); no special ectal 



