114 Proceedings of the Royal Physical Society. 
Macrargus adipatus L. Koch. A male and several females. 
Diplocentria rivalis Camb. One male. 
Leptyphantes Whymperii F. Camb. Both sexes adult and many 
immature examples. 
Leptyphantes cacuminum sp. nov. Several females. See note on 
pls! 
Nemastoma lugubre O. F. Miill. 
Obisium muscorum Leach. 
On June 12th, an excursion was made over the lower slopes of Beinn-a- 
Chuallaich. The water-course Allt Mor was first ascended, and then by 
walking obliquely upwards and westwards the top of the ridge was gained 
at an altitude of about 2000 feet. This was some way west of the actual 
summit. The steep western face of the mountain was descended, and a 
little glen containing numerous birch trees was traversed. Finally the 
road on the north side of the lake was entered about a mile and a half 
west of the Loch Rannoch Hotel. The following Arachnids were noted :— 
Drassodes lapidosus Walck. 
a troglodytes C. L. K. 
Clubiona trivialis L. K. A male, at about 1700 feet. 
Zora nemoralis Bl. A female, in the glen at the foot of the mountain. 
Crypheca silvicola C. L. K. 
Tarentula pulverulenta Clerck. 
Lycosa pullata Clerck. 
»  higriceps Thor. 
Ciniflo fenestralis Strcem. 
Theridion bellicosum Sim. Both sexes. This species had not pre- 
viously been recorded as inhabiting the British Isles. See note 
on page 123. 
Robertus lividus Bl. 
Walckenaéra acuminata Bl. 
Evansia merens Camb. A male and several females, in ants’ nests 
in the glen at the foot of the mountain. 
Maro Falconerii Jackson, A female, under a stone in the same glen. 
New to Scotland. 
Peciloneta globosa Wid. 
Leptyphantes ericeus Bl. 
Labulla thoracica Wid. 
Linyphia pusilla Sund. 
Ovisium muscorum Leach, 
