Mr. Buacxwau’s Descriptions of new Species of Spiders. 637 
and maxillz being the brownest. Legs and palpi red-brown. First and 
fourth pairs of legs, which are the longest, equal in length, third pair the 
‘shortest. Abdomen oviform, thinly covered with hairs, convex above, 
projecting over the base of the cephalo-thorax; it is brownish black. 
Plates of the spiracles very dark brown. 
The male is rather darker than the female, and the anterior part of the 
cephalo-thorax, which is elevated and truncated, has numerous short hairs 
on its summit. On this summit, also, the eyes are distributed in pairs; 
one pair, situated on its posterior part, forms with another, on its anterior 
margin, an elongated trapezoid, whose front side is considerably the short- 
est; the two other pairs are disposed on the lateral margins, the eyes con- 
stituting each being contiguous; the anterior eyes of the trapezoid are 
much the smallest of the eight. "The sexes differ, likewise, in the relative 
length of their legs, the posterior ones of the male, which measure pyth 
of an incb, exceeding the anterior ones a little in longitudinal extent. 
The palpi are dark-coloured ; the second joint is clavate, and has a small, 
pointed apophysis on the inner side, at the base; third and fourth joints 
moderately long; the latter projects a large apophysis from its anterior 
extremity, which curves outwards and rather upwards in front of the fifth 
joint; it is somewhat enlarged at its termination, and has a pointed pro- 
cess on the outer side; a small, obtuse apophysis occurs, also, on the 
under side of the fourth joint; the fifth joint is oval, convex and hairy 
~ externally, concave within, comprising the palpal organs, which are highly 
developed, complicated in structure, very prominent, with a strong, curved, 
black spine at the superior part, and a fine, convoluted one on the outer 
side, near the extremity, resembling in form the human ear, contiguous 
to which, on the under side, is a slightly curved, pointed, projecting pro- 
cess. The colour of these organs is red-brown. 
Specimens of Walckenaéra humilis were discovered in October 1836, under 
slates, in the garden belonging to T. Warner, Esq., of Crumpsall Green, near 
Manchester; and others were observed afterwards on rails at Crumpsall 
Hall. 
24. Walckenaéra apicata. Nigricans ; maxillis rufescenti-brunneis; pedibus 
402 
