Mr. J. Blackwall on newly discovered species 0/ Araneidea. 179 



superior ones are curved and minutely pectinated, and the inferior 

 one is inflected near its base. The palpi have a bro^"n-black 

 tint ; the radial joint is stronger than the cubital, and is some- 

 what produced in front ; the digital joint is oval, with a lobe on 

 the outer side ; it is convex and hairy externally, concave within, 

 comprising the palpal organs, which are highly developed, pro- 

 tuberant, complicated in structure, with a curved prominent 

 process near the base, on the outer side, a few veiy short pointed 

 ones at the extremity, and are of a reddish brown hue. The 

 convex sides of the digital joints are directed towards each other. 

 The cephalo-thorax is oval, convex, glossy, with slight fuiTows 

 on the sides converging towards an indentation in the medial 

 line ; the falces are conical, armed with a few teeth on the inner 

 surface, and inclined towards the sternum, which is broad, 

 convex, and heart-shaped; the maxillae are straight, with the 

 exterior angle at the extremity curvilinear ; and the Up is semi- 

 circular and prominent at the apex. These parts are of a 

 brownish black hue, the falces and maxillae being faintly tinged 

 with red. The four intermediate eyes form a trapezoid whose 

 anterior side is the shortest, and those of each lateral pair are 

 seated obliquely on a tubercle and are nearly contiguous ; the 

 anterior eyes of the trapezoid are placed on a slight protuberance 

 and are the smallest and darkest of the eight. The abdomen is 

 o\dform, glossy, thinly clothed with hairs, convex above, pro- 

 jecting over the base of the cephalo-thorax, and is of a brownish 

 black colour. Some individuals have an obscure series of slightly 

 angular hues of a pale brown colour, whose vertices are directed 

 forwards, extending along the upper part of the abdomen. 



Adult males of Linyphia flavipes were found among moss in 

 woods at Oakland in the summer of 1853. 



Genus Neriene, Blackw. 

 Neri'ene lierbigrada. 



Length of the female y ^th of an inch ; length of the cephalo- 

 thorax 2V ; breadth ^^ ; breadth of the abdomen ^V ; length of 

 an anterior leg y^^j ; length of a leg of the third pair yU. 



The cephalo-thorax is oval, convex, glossy, with an indentation 

 in the medial line; the falces are powerful, conical, vertical, 

 divergent at the extremity, and armed with teeth on the inner 

 surface ; the maxillae are enlarged where the palpi are inserted, 

 and inclined towards the lip, which is semicircular and prominent 

 at the apex ; and the sternum is broad and heart-shaped. These 

 parts have a brown hue ; the sternum and lip are the darkest, 

 and the falces and maxillae, which are the palest, are faintly 

 tinged with red. The eyes are seated on black spots ; those of 

 each lateral pair are placed obliquely on a small tubercle, and 



12* 



