744 REV. 0. P. CAMBRIDGE ON NEW ARANEIDEA. _ [Nov. 1, 
reddish-brown shining tubercles ; some of those on the fore side have 
long curved pale spine-like bristles issuing from them ; and probably 
similar ones had been rubbed off from the rest. Spinners short, and 
devoid of any specially distinguishing feature. 
A single female of this curious Spider was received from Mr. 
Thwaites in the Ceylon collection before mentioned ; it appears to 
belong to some hitherto uncharacterized genus, and to be of the 
family Thomisides. Although not quite adult, it had the appearance 
of being nearly full-grown; nothing is known of its habits. 
Family MyrMECIDEs. 
Nov. gen. APHANTOCHILUS (8 priv. gaivw, to appear, and xetXos, 
the lip). 
Characters of the Genus.— Cephalothoraz long, broader in front 
than behind, divided into quasi-segments by strong constrictions, and 
armed with some longish pointed corneous projections; clypeus 
large, somewhat quadrate, and prominent. 
Abdomen short, broad, oval, united to the cephalothorax by a 
cylindrical pedicle. 
Eyes eight, small and unequal in size, situated in two quadrangular 
groups of four each; the groups widely separated from each other 
on the highest part of the caput. 
Legs moderately long and strong; relative length 4, 1, 2, 3, those 
of the first three pairs being very nearly, if not quite, equal in length ; 
each tarsus ends with two curved pectinated claws. 
Mazille long, straight, and strong, very wide at their bases, the 
inner edges of which are contiguous, as also are their inner edges 
near their extremities; these are a little enlarged and rounded on 
their outer, and obliquely truncated on their cxner sides. 
Labium obsolete. 
Sternum apparently duplicate; the fore one narrow, somewhat 
oblong-oval, deeply emarginate or indented on the edges opposite to 
the legs of the first three pairs, and terminating in a point between 
those of the third pair; between this point and the coxe of the legs 
of the fourth pair (which are in contact with each other) is a very 
small second or rudimentary sternal plate, round, and quite separate 
from the fore one. 
APHANTOCHILUS ROGERSII, n. sp. (Plate XLIV. fig. 10.) 
Female adult, length 5 lines. 
‘The cephalothorax is more than double as long as it is broad, and 
strongly constricted in two places—behind the caput, and between 
the third and fourth pairs of legs; the caput is a little higher than 
the rest of the cephalothorax, and forms a sort of elevated transverse 
ridge, on the extremities of the highest part of which the eyes are 
placed ; these extremities are prolonged in a lateral direction on either 
side into a longish strong horn-like process pointed at its extremity, 
slightly curved and directed forwards; the centre of the thorax is 
