128 ARANEIDEA. 
Count Keyserling describes one from North America which seems also to have some 
affinity to it (Erigone infernalis, Keys., ‘Spinnen Amerikas,’ Theridiide, 1884, p. 180, 
t. 17. fig. 239). 
ERIGONE, Audouin. 
Erigone dentosa, sp. n. 
Adult male, length rather more than 1 line. 
Cephalothorax oval, glossy bright red-brown, rather depressed behind, considerably and rather abruptly 
elevated at the caput, the occiput being well rounded. Clypeus strongly porrected, convex, and consi- 
derably exceeding half the facial space in height. The margin of the cephalothorax is armed with 
prominent denticulations, some of which are much stronger than the rest. 
Eyes normal in position. The four centrals form a trapezoid whose length is greater than its breadth, and its 
fore side rather less in length than the posterior side. The interval between the eyes of the hind-central 
pair is less than that between cach and the hind-lateral eye next to it, and the interval between the fore- 
laterals is equal to a diameter. 
Legs moderate in length and strength, 4, 1, 2, 3, not greatly unequal—of an orange-yellow colour, the femora 
of the first two pairs tinged with reddish ; they are furnished with fine hairs, and along the hinder side of 
the femora of the first pair, rather inside, is a longitudinal row of small denticulations, decreasing gradu- 
ally and regularly in size from the lower towards the upper end of the joint. 
Palpi long, orange-red-brown, rather slender. The humeral joint is bent into a rather S-shape, the.front of 
its lower half (or rather more) armed with strong prominent denticulations, with a longitudinal row along 
its inner side decreasing in strength from base to tip, and a stronger one at its upper extremity. The 
cubital joint is long, rather clavate at its fore end, beneath which is the usual pointed spur, about one-third 
of the joint in length and perpendicular to the joint; also at the middle of the underside is a prominence 
surmounted by a greatly curved or hooked denticulation pointed inwards. The radial joint is less in 
length than the cubital, clavate, with a strong prominent denticulation underneath near its fore end, and 
somewhat pointed at the extremity on the upperside. The digital joint is rather small. The palpal 
organs are complex and rather prominent. 
Falces bright red-brown, straight, powerful, directed backwards, prominent in front, where, rather towards the 
outer side, they are armed with some strong denticulations in a longitudinal row. 
Mazxille, labiwm, and sternum normal in form, and similar in colour to the falces. 
Abdomen oval, glossy, black, and thinly clothed with fine hairs. 
Hab. Guaremaua, Antigua (Sarg). 
This spider is closely allied to several of the common European forms, but differs 
from all known to me in the hooked denticulation beneath the cubital joint of the 
palpi. 
ARGYRODES, Simon. 
Argyrodes argenteola, sp. n. 
Adult male, length not quite 1 line. 
This very pretty and distinct species is normal in its general form and appearance. 
The cephalothorax is deep brown, approaching black; the clypeus exceeds in height half that of the facial 
space, and has the middle of its lower margin somewhat produced and pointed, the point projecting down- 
wards over the base of the falces. 
The eyes of the hind-central pair are further from each other than each is from the hind-lateral eye on its side. 
The legs are moderate in length and strength, 1, 2, 4, 3, those of the first pair much the longest ; furnished 
with short, fine hairs only; those of the first and second pairs are yellow-brown, the femora darker 
