1903.] GEOGRAPHICAL DISTRIBUTION OF SPIDERS. 343 
Parr II. 
DISTRIBUTION OF THE FAMILIES, SUBFAMILIES, AND GENERA OF 
MycGatomorpPu a, and the evidence thus supplied as to their 
Original Habitat and the Lines of Migration followed in 
Dispersal. 
Family DipLurip#. 
The Dipluride are the most widely distributed of all groups of 
Mygalomorphe, being found practically all over the world to the 
south of about the 40th parallel of north latitude. The numerous 
groups, however, into which the genera fall present some features 
in their geographical range of considerable interest. 
1. Subfamily Dreturin2.—The genus Drachythele’ is met with 
in the Mediterranean Region, Central Asia, and the Southern 
States of North America. Nearly allied to it are Hapalothele from 
Madagascar; Brachytheliscus from Natal; dAname, Txamatus, 
Chenistonia, and Dekana from Australia and Tasmania; /ufius 
from Central and South America; Z’rissothele from Chili; Lycinus 
from the Argentine. South America is also the home of Z7rechona, 
Diplura, Uruchus, Harmonicon, and Melodeus. 
2. Subfamily Macrornerin2.—This subfamily is divisible into 
four groups. 
(a) The Macrothele :—JMJacrothele occurs in Spain, China, 
Burma, Singapore, and Java. Nearly related are Phyxioschema 
from ‘Transcaspia, Stenygrocercus trom New Caledonia and 
Queensland, and Porrhothele from New Zealand. /schnothele 
is represented by species from India, Madagascar, 8. & W. Africa, 
and Central and South America; and Hvagrus is known from 
S. Africa and Central America, whence it extends into the 
Southern States of North America (Idaho). 
(b) The Hexathele contain two genera—Hewxathele from New 
Zealand, and Scotinecus from Chili. 
(c) The Atraces contain the genera dAtrax and Hadronyche, from 
Eastern Australia. 
(dz) The Masteriz, comprising Accola and Masteria, which are 
probably identical, occur in Venezuela, the Philippine Islands, and 
Upolu. : 
The presence of Drachythele in the Mediterranean and Sonoran 
areas, and of nearly allied forms in South Africa, Madagascar, and 
all over South America, suggests immigration from the north 
into these countries of the Southern hemisphere. On the other 
hand, the entire absence of related types from the area lying 
between and including India and Austro-Malaysia, and the 
reappearance in Australia of genera closely allied to Brachythele 
1 This genus has also been recorded from S. Africa, Madagascar, 5. America, and 
Australia. It is probable, however, that the species referred to it belong to one or 
other of the allied genera from these areas. 
