544 



thorax having a dark ono between them and the actual margin ; 

 as woll by the more constricted form at the occiput of the central 

 band, and the bright, reddish, yellow-brown normal marking 

 on the fore part of the abdomen. 

 Found iu tho Islo of Arran. 



GENUS TEOCHOSA, C. L. Koch. 



THOCHOSA BIUNGUICULATA. 



Lycosa biunguiculata, Cambr., Trans. Linn. Soc. xxviii., p. 526, 

 pi. xlvi., fig. 2. 



Length of tho malo nearly 4 linos. 



This spider belongs to the Trochosa picta group. 



Cephalo-thorax yollow-brown, thickly clothed with a short, 

 yellowish-grey pubescence, and with some dark converging lines 

 on tho sides ; the two strongest of the lines are those which indi- 

 cate the j unction of the caput and thorax. Legs strong, moder- 

 ately long, 4.1.2.3.; but little difference between 1.2. and 3 ; 

 colour pale lemon yellow ; femora and genua slightly marked with 

 a few obscure, reddish yellow-brown maculte. Annulation, if any, 

 very obscure. Palpi strong, but not very long ; radial and 

 cubital joints of about equal length ; fore extremity of humeral 

 joint, on upper side, has three short, strong, black spines in a 

 transverse row ; digital joint as long as tho radial and cubital 

 together, but broader than these, and terminating with two short, 

 strongish, curved, divergent claws. Palpal organs neither very 

 prominont nor complox ; near their middle is a not very long, 

 but rapidly taporing, sharp, fine-pointed spine, whose point 

 directed outwards does not quite reach tho edge of the digital 

 joint. Just in front of this spine is another vory slonder, curved 

 one having a similar direction. Sternum black. 



The abdomen, although much shrunkon in the only example 

 yet discovered, is apparently of a short, broad-oval form. Its 

 gonoral huo is dark yellow-brown, clothed with reddish hairs, 

 and with several transverse curved, or slightly angular, narrow 



