collected in the Cope de Verde Islands. 93 



diced towards the lip, which is semicircular; and the sternum 

 is heart-shaped. These parts have a red-brown hue, the lateral 

 margins of the cephalothorax and sternum and the base of the 

 lip being soot-coloured. The legs are slender, provided with 

 hairs, and of a red-brown hue, with the exception of the femora, 

 which are black, and the extremity of the tibiae of the first and 

 fourth pairs, which are soot-coloured ; the fourth pair is the 

 longest, then the first, 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 inflected near its 

 base. The palpi resemble the legs in colour, and have a curved 

 pectinated claw at their extremity. The abdomen is oviform, 

 thinly clothed with hairs, convex above, projecting over the base 

 of the cephalothorax, and is of a brownish-black hue ; an oblique 

 white spot is situated on each side of its anterior extremity, 

 another near the middle of the upper part of each side, and an 

 oblong one immediately above the spinners, in the medial line; 

 the branchial opercula have a brownish-yellow hue, and that of 

 the sexual organs, which are moderately developed, is dark red- 

 brown. 



Two females of this species were taken in the Island of 

 St. Antonio. 



Theridion sagax. 



Length of an immature male fths of an inch ; length of the 

 cephalothorax x ^, breadth -i; breadth of the abdomen J f ; length 

 of an anterior leg f ; length of a leg of the third pair ±}. 



The cephalothorax is convex, glossy, and nearly oval, being 

 slightly compressed before, and rounded on the sides, which are 

 marked with furrows converging towards an indentation in the 

 medial line; the falces are short, conical, and vertical; the 

 maxillae are obliquely truncated at the extremity, on the outer 

 side, and inclined towards the lip, which is semicircular; the 

 sternum is heart-shaped ; the legs are long, and provided with 

 hairs; 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 inflected near its base ; the palpi are short ; the radial is 

 larger than the cubital joint, and the tumid digital joint is some- 

 what oviform ; but, as the palpal organs were not developed, it 

 is evident that the spider was immature. These parts are of a 

 yellowish-brown colour, the base of the lip and an oblique trans- 

 verse bar near the extremity of the maxillse having a red-brown 

 hue. The eyes are disposed on the anterior part of the cephalo- 

 thorax in two transverse rows ; the four intermediate ones form 

 a square, the two anterior ones, which are seated on a protu- 

 berance, being rather the smallest and darkest-coloured of the. 



