collected in the Cape de Verde Islands, 99 



obtuse prominences occurring on each, and there is a smaller 

 and more pointed one on each side of its anterior extremity; the 

 upper part is densely clothed with adpressed silky hairs, and is 

 of a pale-yellow colour, with small black spots, many of which 

 are disposed in transverse rows; there are two short, curved, 

 black lines near the middle, whose concave sides are directed 

 towards each other ; and along each side a strongly dentated 

 black line extends; the anterior surface of the lateral promi- 

 nences, the branchial opercula, spinners, and under part have a 

 dark-brown hue ; and an irregular spot on each side of the last, 

 a small one in front of the spinners, and a streak at their base, 

 on each side, are of a pale yellow colour; the sexual organs, 

 which are well developed, prominent, and of a very dark brown 

 colour, have a strong process directed from their posterior 

 margin obliquely forward and downward, whose extremity is 

 enlarged, convex, and glossy. 



This distinctly marked species of Argyopes, which was cap- 

 tured in the Island of Brava, is dedicated to the Rev. Hamlet 

 Clark, who, in conjunction with Mr. Gray, has favoured me with 

 many exotic spiders of great interest. 



Genus Tetragnatha, Latr, 

 Tetragnatha maculata. 



Length of the female -fth of an inch ; length of the cephalo- 

 thorax -^, breadth -jV ; breadth of the abdomen y\j^ ; length of 

 an anterior leg W ; length of a leg of the third pair -f. 



The abdomen is short, broad, oviform, sparingly clothed with 

 hairs, convex above, projects over the base of the cephalothorax, 

 and is Of a brownish-black colour marked with white ; the ante- 

 rior extremity is white, and near it, on each side of the medial 

 line of the upper part, there is a rectangular mark, to which 

 succeed six spots disposed in pairs, more or less contiguous, and 

 diminishing in size as they approach the spinners ; two spots 

 occur on the posterior half of each side, the anterior one of 

 which is the larger, and somewhat triangular, and situated lower 

 on the anterior half there is a slightly curved line ; four spots 

 are disposed in a square on the under part, and there are two 

 minute ones on each side of the spinners, at their base; these 

 marks and spots are white, more or less reticulated with brown, 

 and reflect a silvery lustre : the sexual organs are moderately 

 developed, and of a dark red-brown colour. The cephalothorax 

 is compressed before, rounded in front and on the sides, convex, 

 glossy, with an indentation in the medial line of the posterior 

 region, and is of a pale brownish- yellow colour, with narrow, 

 soot-coloured lateral margins. The eyes are seated on black 



