1869.] Indian Araclmoidea. 249 



either side at the hinder portion of the posterior lateral process. In the 

 middle of the carpace there are two rounded depressions between the two 

 anterior lateral processes, and two between the posterior ones, some- 

 what more distant than the former. Above each of the lower 

 impressions there is a large yellowish spot, and above this laterally 

 a very small groove. In the central longitudinal line of the carpace 

 are placed four little punctures, one below the other, and then two pairs 

 of equally small ones, situated between the two posterior lateral pro- 

 cesses. Beside these there are a number of other small punctures or 

 impressions, but they do not appear to be regular and constant. The 

 prevalent colour of the upper surface of the carpace is yellowish brown, 

 tinged with a reddish hue, produced by short hairs ; these being, 

 however, very easily worn off. 



The lower surface is strongly convex, deeply corrugated with nar- 

 row furrows ; the five spinners are black surrounded by a raised 

 roundish oval edge ; a very strong vertical and pointed protuberance is 

 situated in front of the genital opening, with the roundish trachean 

 opercula laterally and deeply placed. 



Length of cephalothorax 1*5 m.m. ; its width 3*2 m.m. 



abdomen without posterior spines 5.5 „ „ 



"Width of the same measured between the two lateral spines 8 m.m. 



Length of one of the 1st pair of feet 5 ,, ,, 



2nd ,..4-8 „ „ 



3rd 4-5 „ „ 



4th 7-5 „ „ 



This species appears closely to resemble Gast. helva, Black., (xlnn. 

 Mag. Nat. Hist., XIV, p. 42) from which it can be distinguished by 

 the thick processes with very short spines, the want of streaks on 

 their underside, nine equally large, -instead of ten, -posterior marginal 

 depressions of which the two central ones are minute, by the vertical 

 process before the genital opening, by the want of a longitudinal furrow 

 on the thorax, etc. 



Loc. A single specimen was found a few miles South of Port 

 Canning (S. E. of Calcutta) on bushes, where it had made a small snare 

 between the leaves. 



32 



