CHAMBERLIX: MYRIOPODA OF THE AUSTRALIAN REGION. 137 



anterior row are eight, in each other row six tubercles, not including two 

 elevated setigerous areas on each keel, of which the posterior one bears the 

 pore. Each keel has laterally three distinct serrations to which in posterior 

 segments a fourth is added at the anterior corner, each tooth bearing at its 

 apex a bacilliform seta. The posterior angles of all keels from the second 

 caudad are distinctly produced, those from the fourth caudad strongly so, 

 the processes in the posterior region especially long and narrowly acute. 



Anal scutum strongly narrowed caudad; the cauda narrowly truncate, 

 extending well beyond the valves; dorsal surface bearing numerous bacilli- 

 form setae each from a small tubercular base. Valves narrowly but sharply 

 margined. Anal scale triangular. 



Legs long; the tarsal joint especially long and slender. 



Length, near 13 mm.; width, L6 mm. 



368. Opisthoporodesmus obtectus Silvestri. 

 Term, fiiz., 1899, 22, p. 206, pi. 9, fig. 5-7.i 

 Locality. — New Guinea: Tamara Island.^ 



369. AsPHALiDESMUS LEAE Silvestri. 



Zool. anz., 1910, 35, p. 362.i 

 Locality. — Tasmania: Hobart.^ 



370. Ag.^thodesmus steeli Silvestri. 



Zool. anz., 1910, 35, p. 362.i 

 Locality. — New South Wales.^ 



37L IcosiDESMUS HOCHSTETTERi (Humbert and Saussure). 



Verh. Zool. bot. geselbch. Wien, 1869, 19, p. 690.i Carl, Rev. Suisse zool., 

 1902, 10, p. 621, pi. 11, fig. 40-45.2 



Localities. — New Zealand: North Island,- Auckland.^ 



372. IcosiDESMUS OLIVACEUS Carl. 

 Rev. Suisse zool., 1902, 10, pi. 11, fig. 49.' 

 Locality. — New Zealand: North Island.^ 



