Genera and Species of Araneidea. 35 



rounded behind than at its fore extremity. Its upper surface 

 is moderately convex and of a corneous nature, the usual 

 ocellated marks or bosses being faintly marked, and this prin- 

 cipally round the margins of the hinder half; its colour is a 

 dark rich brownish black tinged with maroon, and marked 

 with twelve distinctly defined yellow spots of different sizes 

 and shapes, three forming a triangle near the centre, and the 

 rest equally disposed round the outer margins, the one on each 

 side of the middle of the fore extremity being the largest. The 

 sides and underside are wrinkled and of a deep blackish 

 brown colour. 



A single example of this very pretty spider was contained 

 in a collection made for me on the E,io Grande (South America) 

 by Mr. Henry Rogers, of Freshwater, in the Isle of Wight. 



Paraplectana Kochii^ sp. n. (PI. VII. fig. 10.) 



Adult female, length 3^ lines (nearly) ; longitudinal diameter 

 of the abdomen 2| lines, transverse diameter 3f . 



The whole of the fore part of this spider is of a deep red- 

 brown colour, the tarsi (and metatarsi of the first three pairs) 

 of the legs annulated with yellow. 



The cephalothorax is of the ordinary massive form, the caput 

 elevated into a high, transverse, rounded ridge, and constricted 

 laterally near its fore margin ; its surface is roughened and 

 clothed with fine grey hairs. 



The eyes are in three widely separated groups, near the fore 

 margin of the caput ; they are small, and do not differ much 

 in size ; the central group of four forms a square whose hinder 

 side is longer than the rest ; the posterior pair of these eyes 

 are the largest of the eight ; those of each lateral pair are 

 seated very near together (but not contiguously) close to the 

 lower fore corner of the caput ; the height of the clypeus (in 

 the middle) is rather less than half that of the facial space. 



The legs are short and strong, furnished with hairs only, of 

 which some are greyish white. 



T\iQ, paljn are short and rather slender ; their colour is deep 

 red-brown ; and they are furnished with hairs, like the legs. 



Th-tfalces are moderate in length but very powerful; their 

 form is conical, their direction vertical, and the basal half in 

 front is rugulose. 



The maxillce and labium are of normal form, red-brown 

 with pale extremities, and the sternum rugulose, like the base 

 of the falces. 



The abdomen is large and oval, its transverse diameter con- 

 siderably exceeding its longitudinal; its upperside is pretty 



3* 



