94 ON NEW SPECIES OF TASMANIAN ARANE^. 



ON NEW SPECIES OF TASMANIAN AEANE^. 



By a. T. Urquhart, Core. Mem. Egyal Society 

 OF Tasmania. 



Fam. THEEAPHOSID^. 

 Gen. Maceothele, Auss. 



Macrothele aculeata, sp. nov. 



Mas. — Ceph. th., long, 7; broad, 51. Abd., long, 6; 

 broad, 37 ; legs, 1, 4, 2, 3^24, 23, 22, 20 mm. 



Gephalothorax, brownisb-oclireous, median band dark cbest- 

 nut-bro\vn, trisected, central stripe and basal third of lateral 

 attenuated ; latter pair rapidly dilated, encroach over ocular 

 region without any very determinate limits ; thoracic indenta- 

 tion and marginal zone dusky ; hairs black, short, sparse ; 

 lateral margins armed with a fringe of some^vhat equidistant 

 black spinelike bristles ; two short oblique rows of similar 

 bristles occur on j^osterior incline ; ovate, rounded, and very 

 slightly compressed beyond coxae of first pair of legs ; pars 

 cephalica roundly truncated, convex, depressed visibly behind 

 ocular elevation : clypeus projecting, height about equal to 

 diameter and a-half of a fore-central eye ; pars thoracica 

 depressed by convex ; indentation transverse, deep ; caput 

 and radial striae broad, and somewhat shallow; profile, contour 

 inclined gradually backwards, occiput arched. 



Anterior row of eyes procurved, laterals close to margin of 

 clypeus ; central-pair posited on summit of elevation, less 

 than their radius apart, separated from side-eyes of same 

 row, which are oval, and nearly one-third larger, by an 

 interval perceptibly shorter than their own diameter ; 

 posterior pairs in two sub-contiguous groups, median-eyes 

 opalescent, much the smallest of eight, fully their breadth 

 from anterior centrals ; laterals oval, exceed hind-median 

 pair by one-third, directed somewhat backwards, divided from 

 fore-centre pair by a space surpassing their length. 



Falces lake-brown; fairly-well haired on second half; 

 linear, conical, project forwards at an angle of 20 deg. ; profile 

 arched ; as long as the tarsus of second leg, not as stout as 

 tibial joint. 



Maxillce orange-ochreous ; inversely conical, similar in form 

 to coxal joints of first pair of legs, inclined at same angle, 

 palpi inserted at truncated extremity. 



