100 RECORDS OF THE AUSTRALIAN MUSEUM. 



Gonopods entirely independent of one another. Cnxa^ 

 longish somewhat crooked di.stally, with posterior distal 

 margin slightly produced but without any marginal process ; 

 some fleecy hairs are seen on its anterior surface. Coxal hook 

 of usual length and shape. 



Tracheal stalk (PI. xiv., tig. 14) moderately long, flattened, 

 slightly curved. Femoral part of telopodit angularly pro- 

 duced on the posterior suiface and very hairy. Telopodit (PI. 

 xiv., figs. 13 and 14) split in three branches of even length. 

 Tibial branch (tb.) moderately wide, gently arched, flattened 

 distally, gradually tapering, then abruptly enlai-ged at the 

 apex, which is rounded, except in its anterior angle which is 

 produced into a short, acute spine. Tarsal branch (tah.) 

 winding inwards, angular along its posterior edge near the 

 base, slowly but regularly narrowed afterwards, and with an 

 acute apex. Seminal branch (sh.) curved, gi'adually narrowed, 

 with a short process below the middle of its outer edge (,r.) 



Female : — Coxfe of the second ])air jirovided witli a low, 

 rounded, but strongly chitinized crest on tlie outer edge of its 

 posterior surface. 



Six specimens from Mount Sassafras, one male ami five 

 females. 



AUSTRALIOSOMA KOSCIUsKOVAGU.M, .v^/. unv. 



(Plate XV., figs. 18-20; Fig. 27.) 



(k) (^ tv}>i-' : lengtli 48 m ni ; l)reM(ltIi of 12tli tei'gite 5 

 m/m, of 12t]i ])rozoiiite 4.20 mm. 



(b) 9 • length 4(i m/m ; breadth of 12tli tei-gite ."i.liO m ni. 



Colour as in .1. rniiibmri ; dark red-bmwn background with 

 a dorsal yellow-brown band extending from the anterior margin 

 of the first segment to the apex of the last, divided into two 

 stripes by a brown median line. Keels tipped with yellow. 

 Pleural and ventral surface moi'e I'cddish. AiittMina^ and legs 

 dark. 



Head smooth, except behind the upper lip wlu're tlio face is 

 rugose and hairy. Verte.v swollen on bntli sides, not pai'ticu- 

 larly flattenetl in the middle, with ii iniMliaii sulcus feebly 

 iinj)i-essed and iudistinct ly braiu-lied I)L't ween the antcnna\ 



