668 Mr. Black wall's Descriptions of new Species of Spiders. 



shortest. Each tarsus is terminated by three claws ; the two superior 

 ones are curved and pectinated, and the inferior one is inflectetl near its 

 base. The palpi have a curved, pectinated claw at the extremity. Ab- 

 domen oviform, thinly covered with short hairs, convex above, projecting 

 over the base of the cephalo-thorax ; it is of a red-brown colour, witli a 

 series of white, angular lines, whose vertices are directed forwards, extend- 

 ing along the middle of the upper part ; on each side is a broad, irregular, 

 yellowish band, which is palest on the upper edge, and is tinged with 

 light red-brown below ; underneath, an obscure, yellowish streak extends 

 along each side of the medial line. Plates of the spiracles dull yellow. 



The male reseml)les the female in colour, and in the relative length of 

 his legs, but is rather smaller than she is. The nails of the mandibles 

 have a slight indentation near the middle, externally, and a corresponding 

 projection on the inner side. Fourth joint of the palpi longer than the 

 third, and clavate ; the fifth joint consists of two parts; the shorter and 

 slenderer one is attached to the upper side of the palpal organs, and the 

 longer one is connected with the same organs on the inner side, and 

 extends a little beyond them. Palpal organs glossy, of a gloI)ular form, 

 M'ith a pointed elongation anteriorly, which has the appearance of being 

 twisted ; their colour is very dark reddish brown, approaching to black. 



Mainliaiiliis limatiis occurs under stones and on bushes in the woods about 

 Oakland. The male has the palpal organs completely developed in September. 

 Compare Linyphia tenehri cola, Wldev, Mus. Senkenb. i. p. 26/. t. 18. f. 2. 



Family Epeïrid.e. 

 Genus Epeïra, IFalck. 



51. Epeïra celata. Cephalo-thorace pallide brunneo, marginibus strigis paucis 

 transversis lateralibus fasciaque median;! antice pallide brunneo-maculatâ 

 nigris ; mandibulis maxillisque saturate rufescenti-brunneis ; labio sterno- 

 que nigricantibus ; pedibus palpisque flavescenti-brunneis albo-maculatis 

 fasciatisque ; pedum pari Imo longissimo, dein 2do, 3tio brevissimo ; ab- 

 domine nigro brunneoque vario fascia medianâ lata dentatâ anticè an- 

 gustatâ lineâque brevi decussante flavis. 



