622 REV. O. P. CAMBRIDGE ON ARACHNIDA. [Julie 20, 



and slightly divergent at their extremities ; they are of a dull yel- 

 low-hrown colour. 



The legs are rather short, moderately strong, and their relative 

 leugth appears to be 4, 1, 2, 3, there being very little, if any, dif- 

 ference between those of the second and third pairs ; they are of a 

 brownish-yellow colour striped with longitudinal lines of black, and 

 silvery shining white hairs, and are armed with a few inconspicuous 

 spines. 



The abdomen is of a short oval form ; two-thirds of the upper- 

 side forwards are of a bright scarlet, marked conspicuously in front 

 and on the sides by a broad irregular margin of dove-coloured grey 

 tinged with olive-green ; two large somewhat oval patches of the same 

 colour occupy the centre of the scarlet portion, and are connected 

 with the front border by a narrow line or neck of a similar hue ; this 

 pattern is edged narrowly with black ; the hinder extremity of the 

 abdomen is black, divided from the scarlet fore part by a broad, 

 shining, silvery-white transverse band, which is also divided from the 

 scarlet by a slender black line. The spinners are prominent, of a 

 dull white colour, with a broad black transverse band in the middle 

 of the superior pair ; the underside of the abdomen is of a silvery 

 shining white colour, reflecting rich metallic tints in a strong light, 

 and margined behind with black ; all the above colours on the abdo- 

 men are formed by a short close-set covering of hairs or pubescence. 



A single adult female of this beautiful Salticus was contained in 

 the collection under consideration, and was found at Labuan ; it is, 

 I believe, new to science ; and it gives me great pleasure to connect 

 with it the name of Dr. Collingwood, who has enabled me to give 

 the above report on the Spiders collected by him. 



DESCRIPTION OF PLATE XLLX. 



Fig. 1. Neph'da rivulata (Cambr.), p. 618. 



a. Female, natural size. 



b. Spider in profile, without legs. 



c. Underside. 



2. Ncphila rivulata, p. 618. 



a. Male, natural size. 



b. Palpus of male, magnified. 



3. Nephila chrysogastcr (Walck.), p. 620. 



a. Male, natural size. 



b. Palpus of male, magnified. 



4. Nephila chrysogaster, p. 620. 



Female, natural size. 



5. Salticus collingwoodii (Cambr.), p. 621. 



a. Female, magnified. 



b. Profile, without legs. 



c. Cephalothorax, from above. 



d. Natural size. 



