326 



and third-fourth pairs is much loss than in either of the foregoing 

 gonera of this family, and the spines with which the legs are 

 armed are fine, though tolerably numerous. 



The abdomen is, in males, gonerally elongate-oval, truncatod 

 beforo ; in females, and in somo males, it is broader towards tho 

 hinder part, when it is often sub-angular on the sides, and also 

 pointed behind. Both the abdomon and eophalo-thorax aro usually 

 clothed with hairy pubescence. 



Eleven species are at prosent recorded as indigenous to 

 Britain ; and, of those, seven have boon k found in Dorsetshire. 

 Thoy are oxcedingly agile, running with groat swiftness in all 

 directions, and are found on low plants, bushos, and troos. 



PHILODROMUS MARGARITATUS. 



Abaneus makgaritatus, Clerch., p. 130, pi. vi., tab. iii. 

 Philodromus tallidus, Blachw., Spid. Great Brit, and Irol., p. 

 93, pi. v., fig. 66. 

 „ AiroiOTJTJS, Hid., Ann. Mag. N. H., September, 



1867. 

 „ jEJUNtrs, Panzer., Camlr., Zoologist, 1863, p. 8597, 



and Trans. Linn. Soc. xxviii., p. 437. 

 The length of tho malo is l-5th, and that of the female l-4th 

 of an inch. 



This is an exceedingly variable spider in its markings, but its 

 larger size and mixturo of grey and black colouring (tho more 

 common varieties also tingod with greenish) rondor it easily 

 distinguishable from all our othor known British species. 



The whole spider is of a flattened form. The cophalo-thorax 

 is of the ordinary typo. In tho malo it is grey, more or less 

 mixed with dark-brown and yollow-brown. A faint indication 

 of a broad, longitudinal, central, slightly paler, or sometimes 

 darker, band is occasionally visible. 



Tho logs aro vory long, of a yellowish-grey colour, marked 

 with deep brown and black spots, and imperfoct annuli, with a 

 strong black stripe in front, of at least the basal half, of the 



