Mr. R. H. Meade on the British Species of Phalangiidse. 355 



Phalangium minutum. 

 When I published my monograph, the habitat of this minute 

 species was unknown to me : I had then seen but two specimens. 

 I have since found another, in a collection of Phalangiidse made 

 in the neighbourhood of Dublin. 



Genus Opilio, Herbst. 

 Opilio histrix. 



I am glad now to be able to give this fine Harvest-man (our 

 largest native species) a clear title to a place among the British 

 Phalangiidse. 



In November 1856, the Rev. A. M. Norman transmitted to 

 me, alive, a fine adult female specimen, which he found under a 

 mat " which lay before a window opening down to the ground into 

 the garden," at Kibworth, near Market-Harborough, Leicester- 

 shire. In November of the following year I had also the plea- 

 sure of receiving a pair (male and female) of the same spiders 

 from Mr. Norman, which were captured at Kibworth. In de- 

 termining the name of these specimens from my description, it 

 struck this naturalist that a slight alteration in the account 

 would make it more correct : viz. that the row of minute teeth 

 with which the posterior edge of each ring of the abdomen is 

 said to be furnished should have been called a row of small 

 tubercles. 



Genus Leiobunus, Koch. 



Leiohunus Blackwallii, n. sp. 



L. forma et colore Leiobuno rotundo consimilis ; sed differt cephalo- 

 thoracis fronte pallida, corneis albo cinctis, macula abdominali ad 

 extremum extensa, articulorum crurum juncturis albidis, tarsisque 

 albido et fusco annulatis. 



Long. foem. 2, maris 1^ lin. 



In form this species closely resembles the common Leiobunm 

 rotundus ; but it is about one-fourth smaller, and has the legs 

 proportionably rather shorter and weaker. The 

 general colour is also very similar, the body of 

 the female being testaceous marked with brown. 

 A pale band extends up the front and middle of 

 the cephalothorax from the anterior margin to the 

 eye-eminence, enclosing two short dark lines 

 placed close together in the centre towards the 

 front edge. On each side of the pale band is an 

 irregular dark-brown patch, somewhat semicir- 

 cular in shape, the convexity being inwards, which 

 terminates posteriorly and externally in a sinuous curved mark. 



