262 Records of the Indian Museum. (Vor. XI, 
In front of it the cephalic part of the carapace is strongly 
elevated, and bears a pair of broad longitudinal bands of sparse 
coarse tubercles, which become faint on either side of the posterior 
group of eyes and disappear before they reach the anterior 
margin of the carapace, this being quite smooth. The rest of the 
margin is granular except in the median concavity behind, and 
broadening bands of coarse tubercles radiate towards it from the 
fovea. 
The lJabium is about as broad behind as it is long, and is 
slightly narrower in front. It is unarmed. 
The sternum appears to have been spiney. 
The chelicerae are provided each with a rastellum set on an 
apophysis overhanging the base of the fang. The chelicerae are 
armed each with 5 outer and 7 or 8 inner teeth. 
There is no stridulating organ. 
The tibia of the palp is excavate beneath in its distal third, 
the outer side of the hollow being armed with stout spines, of 
which those at the two ends are long and those in the middle 
short. The distal end of the tarsus bears a bluntly conical 
process on the outer side. 
The bulb of the palpal organ (fig. 1b) is helicoid. The style 
consists of two parts, a basal lamina which is triangular in shape 
and somewhat narrower at the base than it is long, and a very 
slender, slightly curved, distal duct of about the same length. 
The /egs are spiney. The extremity of the tibia of the first 
legs (fig. Ia) is armed on the inner side with two stout conical 
apophyses, of which the proximal has a simple apex turned slightly 
downwards when viewed laterally, while the distal is strongly 
indented on the lower side below the somewhat upwardly directed 
apex. The metatarus is somewhat bent outwards and swollen on 
the inner side below the middle; it lacks the submedian conical spur 
found in I. constructor (Pocock), but bears numerous stout spines 
on the lower side, as does the tibia also. 
The tibiae of the third legs are faintly excavate above, though 
not definitely so as in Heligmomerus. 
This species seems to be most closely related to I. constructor 
(Pocock), from the male of which it differs chiefly in the large size of 
the anterior median eyes—assuming that Pocock’s description of 
the eyes of the female applies also to the male, except as regards 
their proximity where he notes a difference between the sexes. 
The unarmed labium appears to be another distinguishing charac- 
ter. In any case the present species differs from J. constructor 
in the absence of the metatarsal spur of the first leg of the male. 
Group CyYRTAUCHENIEAE, 
Genus Atmetochilus, Simon. 
Represented by the type of A. fossor, Simon (genotype), and 
by an immature male from Upper ‘Tenasserim. 
