124 Rey. O. P. Cambridge on British Spiders. 
grey hairs; and the whole spider is of a rather darker hue ; 
the legs also are longer. The palpi are short; the radial and 
cubital joints are very short ; the former is a little shorter than 
the latter, and has not, so far as I can make out, any promi- 
nence or apophysis at the outer extremity ; the digital joint is 
of a narrow oval form, and exceeds in length the radial 
and cubital joints together; the palpal organs are simple, con- 
sisting of a largish rather prominent oval lobe, with a small 
prominent corneous process near their fore extremity. 
M. Simon writes (‘ Arachnides de France,’ 11. 1875, p. 330), 
“This species is common on the sand-hills ‘de la baie de 
Somme ;’ it takes up its abode on the sand at the base of 
large grassy tufts. ‘The male is unknown.” 
Fam. Lycosides. 
Genus Pirata, Sund. 
Pirata Knorrit, Scop. 
Pirata Knorru, Cambr. Entomologist, 1877, p. 204. 
Dr. L. Koch, of Nuremberg, has kindly sent me an example 
of this species, received by him from the Isle of Arran. It 
is nearly allied to, but quite distinct from, P. piraticus, Clk. & 
Blackw. Dr. Thorell (Syn. Europ. Spid. pp. 343, 344) gives 
the distinctions between P. Knorrdi and P. piraticus at full 
length, as well as the difference of the former from P. hygro- 
philus, Thor.,=Lycosa piscatoria, Bl. 
This spider will probably be found dispersed over the 
marshy districts of the Scotch Highlands. 
Genus TARENTULA, Sund. 
Tarentula aculeata, Clerck. 
Tarentula aculeata, Cambr. Entomologist, 1877, p. 205. 
This spider has hitherto been confused with 7. pulverulenta, 
Clk. =Lycosa rapax, Blackw.; it is, however, a much larger 
spider, though resembling it very nearly in colours and mark- 
ings; the legs are also proportionally longer. The differ- 
ences in this latter respect are given in full detail by Dr. 
Thorell (vide Syn. Europ. Spid. p. 327). 
It is only lately (J. c. supra) that ZT. aculeata has been 
recorded as a British species, from examples found at Braemar, 
and kindly given to me by Mr. J. W. H. Traill, of the Uni- 
versity of Aberdeen; it will probably be some day found 
generally dispersed over the Highlands of Scotland. Dr. L. 
Koch, of Nuremberg, has received it from the Isle of Arran. 
