CHAMBERLIX: MYRIOPODA OF THE AUSTRALIAN REGION. 149 



Apical blades of male gonopods extending forward parallel with each other 

 nearly to the anterior edge of the sixth segment; inner branch at tip short, 

 very slender, acute, curved with concavity ectad, giving exit to the semini- 

 ferous duct, the tip lying close to or against the outer branch. Outer branch 

 a flattened, distally somewhat expanded blade or plate. 



Length, 9.5 mm.; width, l.lo mm. 



411. AiPOTROPis iNsiGNis, sp. nov, 



Ti-PE.— M. C. Z. 4,601. Paraiypes.— M. C. Z. 4,G02, 4,G09. 

 Fijis: Xadarivatu, Vanua Ava (\\. M. Mann). 



The male gonopods are very similar in general structure to those of 

 A. atopus; the principal or distal pieces are less narrowed below the 

 bifurcation; a readily observed difference is in the inner or seminifer- 

 ous distal branch which is stouter and distally less acute and beyond 

 middle is not curved, extending straight distad w'ell beyond and well 

 apart from the outer division or plate. 



The coloration in general similar to that of the preceding species; 

 but the longitudinal band on under surface of keels weaker and largely 

 obscured by encroachment of the darker pigment and on some keels 

 wholly eliminated. Prozonites with median dorsal reddish brown area 

 broader than in atopus, the yellow band each side correspondingly 

 narrower. Antennae wnth first four articles brown, the fifth and 

 sixth white, the seventh with background white but darkened with 

 brown especially proximally. Granular frontal region of head black- 

 ish. 



In the first tergite the emarginations are much weaker and the 

 lobes with free margins only slightly rounded, broader than in the 

 other species. Median portion of plate more depressed with the large 

 tubercles of the two transverse rows less conspicuous. The surface 

 of the tergites in general much more coarsely and strongly tubercular 

 with the large tubercles of the four longitudinal row^s much less 

 prominent. The obviously more prominent tubercle cephalomesad 

 of each pore in A. atopus not distinctly present in the present species. 

 Pores on anterior plates considerably more widely remo\'ed from the 

 margin. Lobes of keels in general less rounded, more angular. 



A larger, more robust, species, the length of the type (male), being 

 close to 12 mm. with the width 2 mm. 



412. Aipotropis variaxs, sp. nov. 



Type.— M. C. Z. 4,610. Paratypes.— M. C. Z. 4,611. Fijis: 

 Munia (W. :\I. Mann). 



