116 Proceedings of the Royal Physical Society. 
Leptyphantes Zimmermannii Bertk. 
3 Whymperii F. Camb. Both sexes. This species had not 
before been found under 2900 feet. 
Mitopus morio Fabr. 
Nemastoma lugubre O. F. M. 
Obisium muscorum Leach. 
A number of species occurred under stones, from about 3500 feet to 
3700 feet. These included :— 
Leptyphantes Whymperii F. Camb. 
- cacuminum sp. nov. 
N Zimmermannil Bertk. 
Peeciloneta globosa Wid. 
Micryphantes sublimis Camb. One female. 
Macrargus adipatus L. Koch. Both sexes. 
Hilaria frigida Thor. The commonest species at this altitude. 
Coryphceus mendicus L. Koch. One male. New to Britain. See 
note on page 127. 
Erigone tirolensis L. Koch. Both sexes. New to Britain. See note 
on page 126. 
Tiso estivus L. Koch. A pair of adults. New to Britain. See note 
on page 127. 
Entelecara errata Camb. Both sexes. New to Scotland. 
Styloctetor morula Camb. Females. Recorded from the Cheviots in 
Northumberland, but not before from Scotland. 
Nemastoma chrysomelas Herbst. Both sexes. 
Obisium muscorum Leach. 
The actual summit, which is 4406 feet in altitude, was covered with 
twelve feet of snow on June 14th. Near it, however, were several exposed 
places covered with stones. Under these stones on these “islands,” at 
elevations of from 4000 feet to 4200 feet, the following spiders were found :— 
Leptyphantes Whymperii F. Camb. Common. 
;; cactuninum sp. nov. Not rare. 
Hilaria frigida Thor. Common. 
Macrargus adipatus L. Koch. One male. 
Coryphceus mendicus L. Koch. Both sexes, the females being common. 
Styloctetor morula Camb. One male. 
Ben Nevis appears to me extraordinarily rich as regards its spider fauna. 
It easily surpasses in this respect the mountains of Cumberland, and the 
