548 REV. O. P. CAMBRIDGE ON NEW AND RARE BRITISH SPIDERS. 
WALCKENAËRA NEMORALIS. 
Walckenaéra nemoralis, Bl. Spid. Gr. Brit. & Ir. p. 315, pl. xxii. fig. 230. 
Two adult males. ! 
WALCKENAÉRA NUDIPALPIS. 
Walckenazra nudipalpis, Westr. Aran. Suec. p. 201; Thor. Syn. Eur. Spid. p. 102; Cambr. Linn. 
Trans. xxvii. p. 466. 
A single adult male. 
WALCKENAERA BREVIPES. 
Walckenaéra brevipes, Westr. Ar. Suec. p. 294, Cambr. Linn. Trans. xxviii. p. 454, pl. xxxv. no. 28. 
Several adult males. 
WALCKENAÉRA CUCULLATA, 
Micryphantes cucullatus, Koch, Die Arachn. iv. p. 45, pl. 89. figs. 200, 201. 
Walckenaéra cucullata, Cambr. Linn. Trans. xxvii. p. 461. 
Numerous examples of this last very remarkable species have been lately received 
from Warsaw, where they were found, and kindly sent to me, among many other 
remarkable species of Hrigone, by Professor L. Taczanowski, Curator of the Warsaw 
Zoological Museum; but the example recorded (Cambr. /. c. suprà) is as yet the only 
known British one. 
WALCKENAÉRA SIMILIS. 
Erigone similis, Cambr. P. Z. S. 1872, p. 761, pl. Ixvi. no. 18. 
An adult male of this species was contained in a collection of spiders received from 
Mr. J. W. H. Trail in October 1872, the portion of the collection in which it 
occurred having been made in the neighbourhood of Aberdeen. This is its first occur- 
rence in Great Britain. It is closely allied to Walckenaéra borealis, Cambr.,— Erigone 
erythropus, Westr., as well as to W. implana, Cambr. 
WALCKENAÉRA FURCILLATA. (Pl. XLVI. fig. 18.) 
Walckenaéra furcillata, Menge, Preuss. Spinn. p. 220, pl. 43. tab. 120. 
Of this rare and most remarkable form an adult male was forwarded to me in June 
1872 from Wokingham, where it was found by the Rev. C. W. Penny, to whose kindness 
(as before observed) I am indebted for several other rare and new species of spiders. This 
is the first record of Walckenaéra furcillata as a British spider. The figures in Menge's 
work are too small and ill-drawn to give any idea of the curious form of the cephalo- 
thorax and position of the hinder pair of eyes; I have therefore added a rough sketch of 
those parts, as well as of the palpus. 
WALCKENAERA BECKII. 
Walckenaéra Beckii, Cambr. Linn. Trans. xxvii. p. 460, pl. 57. no. 44. 
The only example hitherto recorded of this small but distinct Mensis was a damaged 
one, sent me by the late Mr. Richard Beck, of 31, Cornhill, London ; nothing, however, 
