224 Indian Arachnoidea. [No. 4, 



The spinners are blackish, the genital opening on an obtuse dark 

 brown tubercle, and the trachean opercula are large, suboval and very- 

 pale brown. 

 9 Length of the thorax 4 m.m. ; its width about the middle 2.5 m.m. 



: abdomen 7 „ ,, anteriorly 3.0 ,, ,, 



_ one of the 1st pair of feet 15 m.m. 



, 2nd 14-5 „ „ 



3rd- 12 „ „ 



! 4th 12.5 „ „ 



$ The male is in colouring entirely similar to the female, but is often 

 considerably smaller. The cephalothorax is shorter and stouter in pro- 

 portion, and the abdomen thinner than in the £ . The terminal joints of 

 the palpes are at the base strongly inflated, in young specimens greenish 

 or brownish, in full grown ones perfectly black, below with a large 

 opening fitted out with soft skin and a horny laterally projecting black 

 flao-ellum ; the whole is surrounded with various longer and shorter, 

 black, stiff hairs (see pi. xx, fig. 2c). 

 Length of the thorax . . 3 m.m.; its width about the middle 2" 5 m.m. 



abdomen 6 ,, „ anteriorly 2*5 „ ,, 



Length of one of the 1st pair of feet, 13 m.m. 



2nd 12.5 „ „ 



3rd 10.5 „ „ 



4th 11 „ „ 



For some time I regarded this species as identical with Sphasm lepidus, 

 Blackw. (Ann. Mag. Nat. Hist. 1864, 3rd ser., vol. xiv, p. 36), but 

 judging from that author's description, it must be considered as 

 distinct, differing by the markings of the cephalothorax and of the 

 abdomen, by the elongated form of the lip, etc. 



Loc. Neighbourhood of Calcutta, very common (in April and May) 

 among grasses, hunting after insects etc. ; it occasionally makes a very 

 loose snare. 



Family, THOMISIDJE. 



I hardly think a distinction necessary between Thomisus and 



Xysticus in the manner as proposed by Koch, and accepted by several 



arachnologists. The unequal size of the eyes is in no way associated with 



the greater length of the 3rd pair of feet, as pointed out by Prasch (see 



