REV. O. P. CAMBRIDGE ON NEW AND RARE BRITISH SPIDERS. 549 
was known of its habits or exact place of capture. The occurrence, therefore, of six 
adult males lately (October 1872) at Bloxworth Rectory, in a disused sewer, which had 
been closed during the last thirty or forty years, is very interesting. In company with it 
were examples of Tegenaria cicurea, Fabr., and Linyphia crypticolens (vide antea, 
pp. 534, 535). In addition to the characters of Walckenaëra Beckii, given l. c. suprà, may 
be added another, overlooked in the original type, owing to its damaged state; and that is 
the longitudinal division of the summit of the caput into two equal parts by a distinct 
but narrow central longitudinal furrow or groove, which stops short at the occiput. 
The colour of the cephalothorax is more or less dark yellow brown tinged with greenish, 
the normal grooves and indentations, as well as a largish crescent-shaped patch on the 
occiput being brownish black. From the fore extremity on the upperside of each 
femoral joint of the legs springs a short black erect spine-like bristle. The caput, at 
least its upper portion, is glossy and smooth, the puncturing (mentioned Linn. Trans. 
l. c. suprà) being apparently confined to the thoracie parts. 
Since the above was written, an adult male of this species has been received from 
Mr. J. W. H. Traill, by whom it was found near Dunkeld, Scotland, and forwarded to 
me with other spiders. 
WALCKENAERA PRJECOX, Sp. n. (Pl. XLVI. fig. 19.) 
Male adult, length 2 of a line or +; of an inch. 
The colour of the cephalothorax, falces, maxille, labium, and sternum are yellow 
brown, the first being narrowly margined with black. 
The /egs and palpi are clearer and paler than the cephalothorax, and are furnished 
inconspicuously with fine hairs and slender bristles. 
The abdomen is dull black tinged with olive, and (seen through spirits of wine) marked 
with various minute spots and lines of a pale yellowish-white hue, the spinners being of 
the same colour. In form the cephalothorax nearly resembles that of .Erigone pallens, 
Cambr. (P. Z. S. 1872, p. 753, pl. Ixv. fig. 8), the height of the clypeus being less than half 
that of the falees, and the caput not rising above the general run and level into any 
distinct elevation; but it may be at once distinguished from E. pallens by the 
form of the radial joint of the palpus. In the present species this is produced on the 
upperside and very slightly towards the inner side in front into a single, small, slender, 
prominent, pointed apophysis. The joint itself is stronger, but slightly shorter than the 
cubital; the digital joint is rather small, of ordinary form; and the palpal organs are 
simple, and present no specially noteworthy structure. 
The eyes are larger than those of E. pallens; but their relative position is the same. 
They are in two rows, and form a transverse somewhat oval figure, whose length is in 
a transverse direction. The interval between the eyes of the hind central pair is less than 
that between each and the hind lateral on its side, or about equal to an eye's diameter; 
and the interval between each and the fore central opposite to it is equal to two 
diameters of the former. Those of each lateral pair are respectively contiguous to 
each other; and so also are those of the fore central pair; the interval between each 
of these latter and the fore lateral on its side is very slight. From immediately behind 
4E 2 
