1903.) GEOGRAPHICAL DISTRIBUTION OF SPIDERS. 363 
to it, are the two subfamilies of Aviculariide, Thrigmopeine and 
Ornithoctonine, while the third subfamily, Selenocosmiine, is 
common to it and the Australian Region. Moreover, all the genera 
of Aviculariine, of Cyrtaucheniide and Barychelide are peculiar, 
with the exception of Hncyoerypta, belonging to the last-mentioned, 
which extends to Australia. Conothele amongst the Ctenizide is 
also peculiar, if the Solomon Islands be included. For the rest, 
Macrothele and Atypus occur also in the Mediterranean Region ; 
Calommatain Japan and West Africa ; Tschnothele in Madagascar, 
Africa, and South America; Zdiops in Africa and South America ; 
Heligmomerus in Africa ; Latouchia in China; and Sason in the 
Seychelles. 
The apparent richness of India, Ceylon, and Burma, as compared 
with the eastern portion of the Region, may be merely due to 
more extensive collecting in the former countries ; or it may be 
attributable to failure to penetrate far into the latter before the 
break-up of the area into islands. Four genera only are known 
to cross Wallace’s line, namely, Selenocosmia, Phormingochilus, 
Encyocrypta, and Sason ; but, apart from these genera, there is no 
evidence to show that this channel constitutes the divisional line 
between the Oriental and Australian Regions, 
Australian Region. 
(Australia and its adjacent Islands.) 
Dipluridee. 
Macrotheline.—Stenygrocercus : N. Caledonia, Queensland. 
Porrhothele and Hexathele: New Zealand. Atrax and 
Hadronyche: Australia. 
Diplurine.—Aname, Ixamatus, Chenistonia, and Dekana : 
Australia, Tasmania. 
Cyrfaucheniide.— Cantuaria: New Zealand. <Arbanitis: New 
Zealand, Australia. Dyarcyops, Aganippe, Llakistonia, 
Anidiops, and Idiosoma: Australia. 
Migidee.—Heteromigas: Tasmania. Migas: New Zealand. 
Actinopodide.—Hriodon : Australia. 
Barychelide.—/diommata: Australia. Hneyoerypta: Australia, 
New Caledonia.  Trittame: Australia. Barychelus: 
New Caledonia. Jdioctis: Upolu. 
Aviculariidee. 
Selenocosmiinse.— Selenocosmia, Solenotholus, and Selenotypus : 
Australia. 
Of the above-mentioned 27 genera, all are peculiar to the 
Region with the exception of Hneyoerypta and Selenocosmia, which 
also occur in the Oriental Region, and possibly of J/igas, which 
may prove indistinguishable from the South-African JMoggridgea. 
The poverty of New Zealand in genera, and the distinctness of 
two of the three forms that do occur there, entitle it to subregional 
rank, but no more. 
