119 



NERIENE BITUBERCULATA. 



Newene bitubehoulata, Wider., Blaehw., Spiel. Great Brit, and 

 Irel., p. 268, pi. xviii., fig. 181. 



This spider is very nearly allied to Neriene cornuta, and the 

 male has two protuberances on the caput like that species ; but 

 it may at once be distinguished by its larger size (the male 

 measuringl-10thofaninchinlength),andtheproportionatelylarger 

 and bolder protuberances, as well as by its totally different 

 colourings. 



The cephalo-thorax, legs, and palpi are of a clear, bright 

 reddish-yellow colour, and the abdomen black. The protuberances 

 on the caput are much paler in colour than the surrounding 

 surfaoe. The palpi also are of a rather different structure 

 from those of Neriene cornuta. 



The female resembles the male in colours, but is larger, and 

 the caput is but very slightly protuberant behind the eyes, 

 with a very fine, depressed, longitudinal line over the middle of 

 the protuberant part. 



I have found both sexes of this spider among water-weeds, 

 and moss, in a swamp at Bloxworth, as well as near Chamber- 

 lain's bridge ; it has occurred also, running in sunshine, on the 

 parapet of the bridge, and on the causeway fence, Morden Park, 

 near Bloxworth ; and I have received it from some other parts 

 of England, and from Scotland. 



NERIENE CLARKII. 



Neriene claekii, Camlr., Trans. Linn. Soc, xxvii., p. 441, pi, 

 56, No. 30. 



The adult male is 1-llth of an inch long. The cephalo-thorax 

 is yellowish-brown, the legs rather lighter coloured, and the 

 abdomen of a dull, blackish hue. A leading character of this 

 spider is the unusually large size of the digital joints of the 



