Genera and Species of Trapdoor Spiders. 193 
A single female specimen from South Central Madagascar 
(J. Last. Coll.) . 
This is, perhaps, one of the best-marked genera of trap- 
door spiders that has been described for some years. . Unfor- 
tunately nothing is known for certain of its habits; but, 
from its structural features, there can be little doubt that it 
resembles Moggridgea, Myr tale, and Paramigas in building 
its home on the trunks of trees. But, although approaching 
the genera just mentioned in many par ticulars, it yet presents 
many points of likeness, although perhaps not in every case 
of affinity, with many other genera of Ctenizide. For in- 
stance, its small.scattered eyes remind us of Hriodon, its 
maxillary apophyses recall those of Stas¢mopus, and its long 
clypeus suggests the same area in Bothriocyrtum. 
NEOCTENIZA, gen. nov. 
Carapace polished, sparsely hairy ; fovea deep, transverse ; 
cephalic region strongly elevated and convex; ocular area 
wide and transverse ; eyes rather scattered, hier median 
the smallest of the set, separated by a space which is greater 
than their diameter and barely half the distance between these 
eyes and the anterior lateral; the two lateral eyes subequal 
in size and separated by a space which about equals their 
short diameter, the posterior median larger than the anterior 
median and nearly midway between them and the posterior 
lateral; anterior line of eyes slightly procurved, posterior 
slightly recurved and a little wider. Clypeus narrow, sloped, 
and bristly 
Mandibles furnished apically with glistening red hairs, 
which become spiniform below; the ‘apophysis long and 
armed with half a dozen or more strong and longish teeth ; its 
lower border armed with two rows of about six or seven teeth, 
which become intermingled behind; fang for the most part 
smooth and polished. 
Mazille \onger than wide, with a conical distal apophysis, 
internally scopulate, below covered with spiniform sete, but 
only furnished with about a couple of denticles on the front 
edge of the proximal surface. 
Labium conical, convex, armed only with stout sete, its 
two sides continuing the slope of the sides of the sternum. 
Sternum widest just behind the coxe of the second legs, 
strongly narrowed forwards from this point, its anterior part 
marked with a deep longitudinal groove, which is continuous 
with the groove defining the labium, and forms with it a 
Y-shaped suleus. The sternal scars very indistinct, the an- 
Ann. & Mag. N. Hist. Ser. 6. Vol. xvi. Io 
