487 



agrestis. The figures given of these two species in his work 

 (I.e. pis. xix. and xxii.) are all taken from examples of the 

 spider described at p. 115). These were sent to him by my- 

 self, and are still in my collection. 



The true Neriene agrestis, Bl. (now recorded), differs from 

 Neriene fusca, Bl. (Neriene agrestis, BL, Cambr., p. 115), in being 

 rather larger. The cephalo-thorax is of a darker, richer brown, 

 and has not the perceptible convexity or slight gibbosity at the 

 occiput which distinguishes the male of that species, and the 

 legs are of a redder hue. The clypeus is also less in height, being 

 less than half that of the facial space, while in Neriene fusca, Bl. 

 (Neriene agrestis, BL, Cambr.), it equals or slightly even exceeds 

 half. The two last differential characters are very marked and 

 reliable. 



The palpi in both spiders are very similar ; but the cusps of 

 the apophysis at the fore-extremity on the upper side of the 

 radial joint are rather stronger, and more widely separated in 

 the present species ; and on the inner side a little way from the 

 jnner one of the two cusps is a very minute prominent point not 

 observable in Neriene fusca ; the extremity on the under side is 

 also more distinctly produced, and the palpal organs differ a 

 little in structure. 



The example received from Mr. Campbell is the first I have 

 ever seen of the species, though it would probably be found to 

 be not rare in its locality. It does not appear to have been 

 rare in North Wales at the time it was described by Mr. Black- 

 wall, who also records it from Berwickshire. 



NERIENE EXCISA. 



Neriene exoisa, Cambr., Trans. Linn. Soc. xxvii., p. 440, pi. 

 lvi., No. 29. 



Male, length 1-1 0th of an inch. 



Cephalo-thorax dark brown, minutely punctuose ; caput raised, 

 or gibbous behind the eyes. The gibbous part is rather prominent 

 in front, where it is clothed with short hairs, but it melts away, 



