350 Mr. J. Blackwall on newly discovered Spiders 



half its length ; it has an angular point on each side, and is bifid 

 at its termination ; to this band succeed a few small, indistinct, 

 black, angular lines having their vertices directed forwards ; the 

 sides are spotted with brown, and the under part has a yellow- 

 grey hue ; the sexual organs have a longitudinal septum in the 

 middle, and are of a red-brown colour. 



Genus Sphasus, Walck. 

 Sphasus luteus. 



Length of the female /^ths of an inch ; length of the cephalo- 

 thorax T ^ ; breadth ^ > breadth of the abdomen — ; length of 

 an anterior leg f ; length of a leg of the third pair T 3 ^. 



The eyes are seated on black spots on the anterior part of the 

 cephalothorax ; the four posterior ones form a greatly curved, 

 transverse row, whose convexity is directed backwards, and the 

 other four describe a trapezoid whose shortest side is before ; 

 the posterior eyes of the trapezoid are the largest, and the ante- 

 rior ones much the smallest of the eight. The cephalothorax is 

 short, oval, glossy, convex, particularly in the posterior region, 

 with a very slight indentation in the medial line; it is of 

 a dull-yellow colour, with narrow black lateral margins, and 

 a black line extending from each eye of the anterior pair 

 to the frontal margin, which has a brownish-black spot on each 

 exterior angle; on each side of the posterior part there is a 

 brown spot; and obscure oblique lines of the same hue occur 

 on the sides. The falces are conical and vertical; and the 

 maxillse, which are straight, are obliquely truncated at the ex- 

 tremity on the outer side. The colour of these parts is dull 

 yellow, each falx having a black longitudinal line in front, which 

 lines appear like a prolongation of those on the frontal margin. 

 The lip is broader at the extremity than at the base, and has a 

 dark-brown hue. The sternum is heart-shaped, of a dull-yellow 

 colour, and has four short black streaks on each side. The legs 

 are slender, provided with long spines, and are of a pale- yellow 

 hue ; the metatarsi and tarsi have a tinge of brown ; and a fine 

 longitudinal black line occurs on the under side of each femur, 

 being least conspicuous on the femora of the posterior legs; the 

 first pair is the longest, then the fourth, and the third pair is 

 the shortest ; each tarsus is terminated by three claws ; the two 

 superior ones are curved and pectinated, and the inferior one is 

 small and inflected near its base. The palpi resemble the legs 

 in colour, are devoid of black marks, and have a curved, pecti- 

 nated claw at their extremity. The abdomen is oviform, convex 

 above, pointed at the spinners, and of a dull-yellow colour, 

 obscurely freckled with yellowish white, a band of a deeper shade 



