. The Cambridge natural history. Zoology. 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 Scoclra. The stridulating spider figured on p. 328 belongs to this group, Chilohrachys being a genus from Ceylon. (vii.) The Diplueinae 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, mu
. The Cambridge natural history. Zoology. 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 Scoclra. The stridulating spider figured on p. 328 belongs to this group, Chilohrachys being a genus from Ceylon. (vii.) The Diplueinae 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. Two genera have representatives in Europe, Bracliytheh inhabiting the East Fig. 202.—Ischnothde dumi- ^Mediterranean region (as well as many other parts of the world), while Macrotheh 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 Hexatheh, and the genus Scotinoecus from Chili, possess six spinnerets. Masteria (Ovalan Island) and Accola (Philippines and South America) differ from the rest of the family in having only six eyes. Fam. 3. Atypidae.—Spiders ivitJi antei-iorly pii'ojecting and vertically articulating chelicerae, hut with no trough on the paturon for the reception of the unguis, which is guarded when closed hy a single row of teeth. The spinnerets are nornicdly six, and the anal txibercle is cibove, and 'well removed from the ptosterior 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
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