4.28 Mr. J. Blackwall on newly discovered Spiders 



sternum has minute brown spots on the lateral margins. The 

 falces are very long, very prominent, somewhat cylindrical, and 

 armed with a long fang, and an obtuse process resembling a 

 double tooth on the inner surface ; the maxillae are straight, and 

 enlarged and somewhat quadrate at the extremity; and the lip, 

 which is longer than broad, is truncated and hollowed at the 

 apex. These organs have a yellowish-brown hue. The palpi 

 are slender and of a yellowish-white colour, with the exception 

 of the digital joint, which has a yellowish-brown hue; the radial 

 is longer than the cubital joint, and has a small, red-brown, 

 crescent-shaped apophysis at its extremity, on the outer side, 

 whose superior hmb is the longer; the digital joint is of an 

 oblong- oval form, convex and hairy externally, concave within, 

 comprising the palpal organs, which are moderately developed, 

 not very complex in structure, and whose colour consists of 

 mixed shades of yellowish-brown. The abdomen is oviform, 

 somewhat pointed at the spinners, convex above, and is clothed 

 with hoary hairs ; a broad, dentated, yellowish-grey band, which 

 is bordered laterally with pale brown, extends from the anterior 

 extremity of the upper part along the middle, diminishing in 

 breadth to its termination at the spinners ; the sides and under 

 part are yellower than the medial band, and are without spot. 



Clubiona affinis. 



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

 thorax ^o ; breadth y\ ; breadth of the abdomen ^~; length of 

 a posterior leg f ; length of a leg of the third pair ^. 



The legs are long, provided with hairs and sessile spines, and 

 are of a yellowish-brown hue, with the exception of the anterior 

 ones, which are slender, devoid of spines, and have a yellowish- 

 white tint ; the fourth pair is the longest, then the second, and 

 the third pair is the shortest ; each tarsus is terminated by two 

 curved pectinated claws, below which a small scopula is situated. 

 The palpi resemble the legs in colour. The cephalothorax is 

 compressed before, rounded on the sides, truncated in front, 

 sparingly clothed with short hairs, convex, glossy, and has a 

 narrow longitudinal indentation in the medial line ; it is of a 

 dull yellow colour, with a brown band extending along each side. 

 The eyes are seated on black spots, and are disposed in two 

 transverse rows on the anterior part of the cephalothorax ; the 

 four intermediate ones form a trapezoid whose anterior side is 

 the shortest, the two eyes constituting it, which are situated 

 immediately above the frontal margin, being the smallest of the 

 eight. The falces are long, powerful, conical, rather prominent, 

 armed with a few small teeth on the inner surface, and are of a 

 red-brown colour. The maxillae are straight, and enlarged and 



