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Show 1875.] NEW SFECIES OF ERIGONE. 403 on its side by an interval equal to its own diameter, and from the hind central nearest to it by an interval equal to the diameter of one of the fore laterals. The legs are tolerably long, slender, and furnished with hairs, bristles, and a few longish fine spines on those of the fourth pair ; their relative length is 4, 1, 2, 3. The falces are long and strong, slightly hollowed on the outer sides (when looked at from the front), and a little divergent at their extremities; they are armed on their inner edge, towards the extremities, with a double row of teeth, those of the front row rather long and strong, of the hinder row minute. The maxilla are strong, a little curved, and inclined, but not very strongly, towards the labium. The abdomen is large, oval, very convex above, and projects fairly over the base of the cephalothorax ; it is black, thinly clothed with fine hairs, the spiracular plates and corpus of the epigyne (which is prominent and of characteristic form) dull yellow-brown; the extremity of the genital process is bright red-brown. A single example of this Spider, which appears to belong to the group characterized (and probably rightly) as a separate genus by Menge, under the name Bathyphantes, was received from Mr. Emerton, by w h o m it was found under a stone at Brighton, Boston, U.S.A., in April 1873. ERIGONE VIARIA. Neriene viaria, Bl. Spid. Great Brit. & Ireland, p. 255, pl. xviii. fig. 171. Erigone quisquiliarum, Westr. Araneae Suecicae, p. 277. Adults of both sexes of this Spider were received from Mr. Emerton, by whom they were found under leaves at Brookline, Massachusetts, U. S. A., in March 1874. These examples present no variation whatever from the English and continental examples of this species. ERIGONE FLORENS, sp. n. (Plate XLVI. fig. 10.) Adult male, length 1\ line. The cephalothorax of this pretty and very distinct species, as well as the palpi, falces, maxillae, labium, and sternum, are of a bright shining orange-yellow colour ; the femora of the legs are of a similar colour, the genual, tibial, and metatarsal joints being strongly suffused with brownish black, while the tarsi are of a dusky yellowish hue, and the abdomen black. The caput has a large strong eminence, broader at the top (when looked at from the front) than at its junction with the caput itself, and divided into two large well-rounded lobes by a longitudinal depression ; immediately behind each lateral pair of eyes is a large and deep indentation, or excavation, running longitudinally backwards, and running out to a point near the occiput; at the larger or fore end of this excavation is a small, round, shining, eye-like fovea or impression; the clypeus is broad, bold, and well-rounded, and prominent at its lower side, its height being about half that of the facial space ; the fore |
