390 ARACHNIDA—ARANEAE CHAP. 
the scopulae and claw-tufts are well developed. Its nearest allies 
in the Old World are the Indian genus Poecilotheria, and the 
West African genus Scodra. The stridulating spider figured on 
p. 328 belongs to this group, Chilobrachys being a genus from 
Ceylon. 
(vii.) The DIPLURINAE are a very aberrant group, including 
some twenty genera of Aviculariidae, usually of medium size, and 
possessed, as a rule, of very long posterior 
spinnerets. They do not burrow or live 
in holes or under stones, but weave webs 
of close texture, much resembling those 
characteristic of the Agelenidae (see p. 
415). The tarsal claws are three in 
number, and there are never any claw- 
tufts. The rastellus, of course, is absent. 
A | | K Two genera have representatives in 
| Europe, Brachythele inhabiting the East 
ae ESL ae a Mediterranean region (as well as many 
aa other parts of the world), while Macrothele 
is found in Spain as well as in the Malay Peninsula and New 
Zealand. Ischnothele dumicola is a native of Western India. 
Diplura is a South American genus. Trechona venosa, a large 
species remarkable for the orange bands which decorate its 
abdomen, is also a native of South America. The New Zealand 
genus Hexathele, and the genus Scotinoecus from Chili, possess 
six spinnerets. J/asteria (Ovalan Island) and Accola (Philippines 
and South America) differ from the rest of the family in having 
only six eyes. 
Fam. 3. Atypidae.—Spiders with anteriorly projecting and 
vertically articulating chelicerae, but with no trough on the paturon 
for the reception of the unguis, which is guarded when closed 
by a single row of teeth. The spinnerets are normally six, and 
the anal tubercle is above, and well removed from the posterior 
spinnerets. 
The Atypidae are a small family of six genera, rather closely 
related to the Aviculariidae, and by some Arachnologists incor- 
porated with them. They may be regarded as the representatives 
of that family in sub-tropical and temperate regions. In form 
they are strongly built, with smooth integuments, and their legs 
are short and powerful. Of the twenty-four species hitherto 
