1882.] REV. O. P. CAMBRIDGE ON NEW ARANEIDEA. 427 
fore part of the abdomen, which is of a cylindric form, drawn out 
into a kind of sheath, into which the distinct pedicle uniting the 
cephalothorax and abdomen is inserted; the cuticle of this sheath 
runs back along way beneath the abdomen, and includes the spi- 
racular plates, the openings into the spiracles being thus unusually 
approximated to the hinder part of the abdomen. 
The cephalothorax is small, oval, and without lateral marginal 
constriction at the caput. 
Legs moderately long and very slender, furnished with hairs and 
a very few fine spines, |, 4, 2, 3. 
Eyes very small, rather closely grouped, and placed as in Neriene. 
Clypeus prominent, 
Faices rather small, straight and vertical. 
Mawille strongly inclined to the labium, over which they almost 
meet at their extremities. 
Labium very short, aud somewhat rounded at the apex. 
CoLEOSOMA BLANDUM, sp.n. (Plate XXIX. fig. 3.) 
Adult male, length 1 line. 
The cephalothorax, falces, maxillz, labium, and sternum are of a 
ellow-brown colour, more or less suffused with dusky brown. 
The profile of the thorax and caput forms a slight curve to the 
eyes; the height of the clypeus (which is prominent) exceeds half 
that of the facial space. 
The Jegs are pale yellow, a small portion at the posterior extremity 
of the tibiee, and at the anterior extremity of the metatarsi, of those 
of the fourth pair being of a brownish hue. 
The palpi are of moderate length, and of a dark suffused yellowish- 
brown colour. The cubital joint is strong, somewhat curved, and 
obtuse at its fore extremity, near which issues a single sinuous 
strongish bristle; the radial joint, which is shorter, is articulated 
to the cubital somewhat sideways, being directed outwards from it, 
much like that of some species of Therzdion, and of a broad spread- 
ing form at its extremity. The digital joint is large, oval, and with 
a strong lobe on its inner side; the palpal organs are prominent 
and complex, with a large, strong, circularly curved tapering spine 
at their outer side. 
The abdomen is of a cylindric form, strongly constricted across the 
upperside near the middle; the peculiar sheath-like form of its 
anterior extremity has been noticed above; this part is yellow- 
brown ; the rest is nearly black, with a very large, pale, dull yellowish 
marking on the sides, extending to the underpart. The posterior 
extremity projects over the spinners, and is obtusely rounded and 
prominent. 
A single example of this very peculiar and delicate little Spider 
was sent to me, among others, some years ago from Ceylon by 
Mr. G. H. K. Thwaites. It combines characters of Neriene, Liny- 
phia, Theridion, and Sphecozone. 
