236 Indian Araclinoidea. [No. 4, 



white and yellow. The lower side is black with a yellow eliptical 

 mark, extending from the genital opening towards the anus, and cross- 

 ed in the middle by a slightly curved band ; above this are a few 

 yellow spots. The genital opening is, as usually, situated near the 

 anterior end in a brown hard prominence ; the trachean opercula are 

 laterally placed, a little in front of it, they are large and of subtriangular 

 shape ; the spinners have five large, black appendages. 

 Length of the thorax 4 m.m.; its width (posteriorly) 3.5 m.m. 



abdomen 9.5 ,, ,, (in the middle) 6 „ „ 



Length of one foot of the 1st pair 23 m.m. 



2nd — 20.8 „ „ 



3rd — 13 „ „ 



4th — 19.5 „ „ 



Loc. Two females, slightly differing in size, were found on bushes in 

 the Sundarbans, a few miles south of Port Canning. 



One of the nearest allied species of this Argyopes is described by 

 Savigny in the Zoology of the Exped. d' Egypte, (Arachnides, pi. ii, 

 fig. 5), but the abdomen of this one is marked with continuous cross 

 bands and all the feet possess brown and pale bands. 



Epeira (Argyopes) mammillaris, Stoi Pi. XX, Fig. 12. 



£ Cephalothorax depressed, not much longer than broad, anteriorly 

 narrow and slightly elevated, the elevation of the occular region conti- 

 nuing posteriorly as a short ridge which terminates near the centre ; the 

 lateral margins are posteriorly curved, and the posterior end is broadly 

 truncated. The whole thorax is thickly covered with very short white 

 hairs, it is brown with a yellow spot in the middle and a smaller one in 

 the centre of the posterior edge ; the lateral margins are also yellow. 



A small prominence in front bears the four central eyes, two above 

 and two below ; they form a regular square and are of equal size ; the 

 lateral eyes are a little smaller, than the centrals, they are situated on 

 minute tubercles, and are very little more distant from the posterior 

 centrals than these from each other. 



The falces are short, stout, brown with blackish claws. 



The lip is rather large, roundish at the end and with almost per- 

 pendicular sides ; the maxillaa are nearly twice as long, narrow at the 

 base, dilated and roundish towards their ends ; both are brown. 



