1902,] MH. H. R. HOGG ON AUSTRALASIAN SPIBERS. 415 



their smaller fellows could not follow. In some instances both 

 cephalothorax and abdomen have likewise become abnormally 

 flattened, accompanied in the more pronounced forms such as 

 Delena by a lateral extension of the eyes. 



L. Koch originally included in this group the Hetnicloemce, in 

 consequence of a similar and even more exaggerated flattening 

 of the whole body cleai'ly ai-ising from the same habits ; but as 

 they are an oflTshoot of another family, the Drassid^e, they have 

 been i-ightly sepaiuted by M. Simon, and I do not inchide them 

 in the present papei'. 



The Australasian genera may be grouped as follows : — 



A. Median eyes of the front row distinctly smaller than the 



laterals, being abont three-fifths the diameter of the latter ; 

 the area of the four median ej'es longer than broad. The 

 highest part of the cephalothorax in the posterior one-third, 

 thence sloping anteriorly; generally no flagellnm in the 

 male palp, or, if present, no spiral drum. 



a} . Rear row of eyes recurved ; laterals protuberant Heteeopode^. 



a- Rear row of eyes straight or procurved; lateral eyes 



sessile Paltste^. 



B. Median eyes of the front row larger than, equal to, or only 



slightly smaller (about one-fifth of diameter) than laterals 

 of same. The median-eye square not longer than broad 

 (except in Pediana). The stylus of the male palp produced 

 into a flagellum, coiled round a supporting di'uni, which is 

 spirally grooved for its reception. Cephalothorax either 

 quite flat above or highest in fi-out half, thence sloping 

 posteriorly Delexeje. 



Group Heteropode^. 



The members of this gi-oup found in Australia at the presen;^ 

 ' time, although probably more like the original type, from which 

 the large bulk of the laterigi'ade spiders now inhabiting the 

 continent must have been specialized, would seem to be of com- 

 paratively recent importation. 



The species are all either to be found themselves oi- have near 

 I'elatives in the islands to the North and East. 



Entering evidently fi'om Cape Yoi-k, they are most numerous 

 along the coast of Queensland and New South Wales, while a 

 few isolated specimens have been recorded as far as the centre of 

 Victoria, from Adelaide, and from Central Avistralia. 



They show scant signs of compi-ession, and the distance l^etween 

 the two I'ows of eyes is greater than in the more widely-spread 

 indigenous types, while they are withovit the spiral conductor 

 and generally without any elongated stylus in the male palp. 

 The genera may be distinguished as follows : — 



A. Rear row of eyes only slightlj' recurved ; median pair of 



same nearlj' as far apart as they are distant from the 



side eyes Seteropoda Latr. 



B. Rear row of eyes strongly recurved. Rear middle ej-es 



about four times as far from the side eyes as fi-ora one 



another {sec. L. Koch) Fandercetes L. Koch. 



