144 



colour. The cephalo-thorax is something like that of 

 Walckenagra brevipes Westr., but the general shape is less short, 

 and not nearly so circular ; the caput is also less massive ; its 

 colours however, as well as other characters (especially a long, 

 narrow, deepish, longitudinal indentation running backwards from 

 each of the hind lateral eyes), will most readily distinguish it from 

 either of the foregoing spiders. The palpi are short; the 

 radial apophysis is small, slender, prominent, and pointed, and 

 projects from the fore extremity of the joint slightly towards the 

 inner side ; the palpal organs are simple. 



A single example only, fonnd by my nephew, Frodorick 

 P. Cambridge, among grass on the lawn at Bloxwoith Eectory, 

 in March, 1872. 



WALCKENAEKA SUBITANEA. 



Erigoite subitanea, Cambr., Ann. and Mag. N.H., s. 4, vol. 16, 

 p. 249, pi. 8, fig. 7. 

 This very minute spider is very nearly allied to Walchnacra 

 prmcox, Cambr., it is, however, smaller, the adult male measuring 

 no more than l-23rd of an inch in length. 



The curve of the hinder row of eyes is also less strong, and 

 the height of the clypeus is, as nearly as possibly, equal to half 

 that of the facial space, while in Walclcenaera pracox it is less 

 than half. The occiput (in profile) is][also more gibbous, and the 

 radial apophysis is far less prominent. The eyes of the hinder 

 row are equidistant from each other, while those of the hind- 

 central pair of Walckenaera pracox are distinctly nearer to each 

 other than each is to the lateral eye next to it. A nearly similar 

 indentation runs backward from each hind-lateral eye, and in 

 other respects also it bears close resemblance to the last 

 mentioned spider. 



A single example, found in May 1874 among decayed wood 

 in an outhouse at Bloxworth Eectory, is as yet, the only 

 recorded instance) of its occurrence. 



