A Contribution to the Spider Fauna of Scotland. 127 
of water trickling from the melting snow above. At that date their locality 
was below the snow-line. 
Professor Kulezynski kindly confirmed my identification. 
Tiso estivus L. Koch. 
[Plate ILI. Figs. 9, 10 and 11.] 
Hrigone estiva L. Koch., Beitr. z. Kennt. Arach. Tirols, ii. 
Hrigone carpatica Kulez., Aran. Nov. in mont. Tatricis, etc., pp. 16, 17, Tab, ul. figs. 
10 a, b. 
Tiso westwwus L. Koch. Chyz. and Kulez., Aran. Hung., ii., p. 127, Tab. v. figs. 
7 a, 0, ¢, d, & 
This species is recorded from Tyrol and Tatra in the Carpathian mountains. 
Its place appears to be taken in the Swiss and French Alps by Z'%iso morosus 
Sim., which must be very closely allied. 
A very distinct little species, the male of which measures 1°35 mm. in 
total length. Facies rather like that of Ziso vagans Bl. The figures of 
the palpi in Aranew Hungariw are excellent, but the vulva appears different 
to me, and I have tried to draw it as I see it. 
Professor Kulezynski kindly confirmed my identification. 
A pair of adults were found on Ben Nevis at about 3500 feet, near the 
locality inhabited by Lrigone tirolensis. 
Corypheus mendicus L. Koch. 
[Plate ILI. Figs. 6, 7 and 8.] 
Hrigone mendica L. Koch., Arachniden aus Siberien und Novaja Semlja. 
Corypheus mendicus L, Koch. Kulez., Fragmenta Arachnologica, v., pp. 585-588, 
pl. xxi. figs. 11, 16, 17, 18, 19. 
This species inhabits Siberia. I can find no other records. 
The male measures 1°38 mm. in total length. The species resembles 
C. distinctus Sim. in facies, but is darker in colour, being almost black. The 
structure of the genital organs easily separates the two species. 
Males and females were found under stones near the summit of Ben 
Nevis well above the snow-line in June 1913. The highest was found at 
about 4200 feet, the lowest at about 3700, but at the latter altitude the 
species was very scarce. The actual summit was covered with snow, and 
the stones under which many of the specimens were found were surrounded 
by snow. This and other spiders at this altitude appear to feed chiefly 
upon a small Collembolan. 
