118 Proceedings of the Royal Physical Society 
On the shore at Ardrishaig the following were captured : 
Lycosa amentata Clerck. 
, agricola Thor. 
Erigone arctica White. Females only. 
Macrargus abnormis Bl. 
Platybunus corniger Herm. 
II—DESCRIPTION OF SPECIKS. 
Leptyphantes cacuminum sp. nov. 
[Plate II. Figs. 1, 2, 3, 4, 5 and 6.] 
Ma.e.—Total length, measured in profile, 1°75 mm. 
Colour.—Carapace—Clear yellow-brown, with slight traces of a dark 
marking at the thoracic juncture giving off radiating lines to the edges of the 
cephalothorax. Sternum—Yellow-brown, much suffused with dark brown; in 
some specimens of an almost uniform dark brown. Labiwm and appendages 
yellow-brown, the palpal tarsi being the darkest. Abdomen yellow-brown, 
more or less suffused with dark brown. No dentated pattern, but in some 
dark specimens the dorsum bears three or four pairs of pale round spots 
arranged in two longitudinal rows, and a few pale streaks. Under part of 
abdomen yellow-brown; the epigastric area sometimes, and the spinners 
always, a good deal paler than the rest. 
Hyes.—Arranged in two rows. 
Anterior row straight. Centrals almost in contact and about a 
diameter from the laterals, which exceed them in size. 
Posterior row straight. Eyes subequal. Centrals less than a diameter 
apart and still nearer to the laterals. Ocular area much pig- 
mented. These ocular arrangements are subject to considerable 
variation as in all spiders of this family. 
Clypeus.—About as high as ocular area. 
Sternum.—Heart shaped. 
Labium.—Short, rounded in front. 
Falces.—Rather divergent. 
Palpi.—Patella—Short, ‘1 mm. long, with a prominent gibbosity above, 
from the summit of which springs a strong bristle. 
Tibia—Longer than patella, measuring 13 mm, Gibbous above, 
rather in front of the middle. Posterior to this gibbosity arises 
a long, strong bristle similar to that carried by the patella. 
