1901.] AUSTRALIAN SPIDERS. 257 



The generic differences of Aname Koch and loaamatus Sim. 

 are very slight, and they might well be combined, though they 

 can be clearly distinguished from Brachythele Auss., and Hapalo- 

 tJiele Lenz. 



Brachttkble platipus Auss. 



Brachythele platipus Auss. Verb, zool.-bot. Ges. Wien, 1875, 

 p. 159. 



Described by Ausserer from a cephalothorax only, from Herr 

 L. Koch's collection and marked New Holland, without further 

 description. 



The length of cephalothorax is 7*5 mm. = tibia + patella iv., as 

 in all the species of Aname L. Koch. Breadth of cephalothorax 

 5'8 mm. 



The front middle eyes are somewhat more than their diameter 

 apart ; and the hair-covering of the cephalothorax is dingy yellow- 

 brown. 



The description is inadequate to show in what it differs from 

 the species of Aname above described, to which genus it probably 

 belongs; but I leave it as given until proof can be shown, from more 

 material, of the genus to which it should really be attached. 



Grenus Ixamatus Simon. 



Lvalus L. Koch, Die Arachn. Austr. 1873, p. 469 {nom.prceocc). 



Hapalothele H. Lenz, Zool. Jahrb. 1886, Band i. pp. 396-7. 



Ixamatus E. Simon, Ann. Soc. Ent. Er. 1887, Bull. (note). 



Hapalothele Lenz, E. Simon, Hist. Nat. d. Araign. vol. i. 

 p. 180. 



Type, /. varius L. Koch. 



M. Simon gave the above name to Herr Koch's genus Ixalus, 

 which name had been used before, for a group of mammals. He 

 subsequently, however, referred it to Lenz's Hapalothele, type 

 H. reuteri, from the island of Nossi-be off N.W. coast of 

 Madagascar. 



In Lenz's genus the male has an apical spur on tibia i., 

 which is not the case in either of the species below, which 

 follow exactly Ixamatus Simon. Further, the front row of eyes 

 is straight or recurved, instead of procurved as in Ixamatus, and 

 its members have no scopula, instead of having tarsi i. & ii. thickly 

 scopulated ; moreover the tarsal claws have only one row of 

 pectinations apparently crossing them, as in the Macrothelece and 

 Atracece groups, whilst in the Australian species of Ixamatus they 

 are strongly biseriated. 



The superior spinnerets are slender, the last joint tapering and 

 longer than either of the others. 



The thoracic fovea is straight, and the metatarsi are not 

 scopulated on any of the legs. 



Prog. Zool. Soc— 1901, Vol. II. No. XVII. 17 



