BY H. H. BURTON BRADLEY, ESQ. 235 



Sternum : moderate size, oval, approaching cordate ; broadest 

 at base ; color, yellowish. 



Abdomen: depressed, nearly 2^ lines long, and as broad at 

 posterior part, which is broadest, and tuberculated on upper sides ; 

 color above, as cephalotJiorax, 'darker in the centre and towards 

 the sides ; below, yellowish-brown in the centre ; yellowish-grey 

 towards the edges ; the sides are greyish-brown ; the two posterior 

 spinnerets slightly prolonged. 



This insect is altogether not so strongly tuberculated as 

 S- Cambridgei. I obtained it in February 1868, at Tia, New 

 England, under bark, without either web or tube of silk. Tia is 

 on the coast side and almost on top of the coast range ; I am told 

 about 3000 feet above the level of the sea. 



S. TDBERCULATA. 



$ length a little over 3| lines. 



CepJialotJiorax : black rugulose, nearly two lines long, about one 

 broad at posterior part, which is slightly broadest and narrowing 

 gradually to base of cephalic protuberance, which is narrow and 

 rises abruptly. 



Eyes : placed much as in S. nigra, but lateral anteriors nearly 

 twice as large as posterior eyes, which again are about twice as 

 large as intermediate anteriors. 



Legs : 1st and 2nd equal, longest ; 3rd and 4th equal ; all strong 

 and moderately long ; 1st and 2nd very strong in the femur and 

 tibia, and tuberculate ; 3rd and 4th less so ; color, above black ; 

 below, as far as the tarsi, yellowish-brown, tarsi and metatarsi, 

 blackish-brown. 



Palpi : yellowish-brown, strongly armed with tubercles and 

 blunt spines, which are nearly black. 



Falces : shape as in S. altifrons ; color, yellowish-grey ; 

 fangs, reddish, moderately long, slightly curved. 



Maxillce : shape as in that species ; color, same as that of 

 falces ; labium, about as long as broad, and rounded at the apex ; 

 broadest at the base. 



Sternum : broad, oval, truncate at fore part, a few light 

 colored hairs scattered over it ; color, same as maxillse, but 

 slightly darker towards the edges. 



