darker than the hind-laterals, and these again darker than the hind-centrals, which are of a brilliant pearly lustre.

Falces moderately strong, prominent, knee-shaped, shorter than the patella of a leg of the 1st pair; groove-toothed, 4 small teeth on the outer and 3 large ones on the inner side; the basal half glabrous, the fore part sparingly furnished with hairs; claw moderately long and strong.

Maxillœ strongly diverging, sides parallel, at the fore end slightly rounded, on the outer end produced to a subconical point on the inner side; no spines on any part.

Lip triangular, rather longer than broad at the base, convex, and separated from the sternum by a semicircular groove.

The sternum ovate in outline, broadest behind, emarginated at the anterior and somewhat pointed at the posterior extremity; the sides projecting slightly opposite the 1st, 2nd, and 3rd pairs of legs.

Abdomen ovate, longer than the cephalothorax and about as broad. Inferior spinners short and slender, superior more than twice as long as the inferior, and very stout.

Palpi considerably longer than the cephalothorax, armed with spines on the superior side of the humeral joint, and on the inferior side of the radial joint, and with two longish slender ones near the fore-extremity of the digital joint; humeral joint bent, laterally compressed, and nearly as long as the cubital and radial joints together; radial joint much longer and much stouter than either the cubital or the digital joint; bulbus genitalis directed backwards, turbinate, and produced into a long, slender, sharp-pointed spine.

Legs 1, 4, 2, 3, the 1st and 4th not differing much in length; armed with hairs, bristles, and spines, the last most numerous on the femora and stoutest at the sides of tibiæ and at the fore-extremity, below, of the patellæ of the first pair. The other joints have few or no spines. The metatarsi of the first pair are only slightly bent at the basal half, but the tibiæ of the same pair are considerably stronger than those of the other pairs.

The female of this species has been described by Cambridge; but, as the male differs very considerably from the female, I have given a detailed description of it here.

Found at Ravensbourne, near Dunedin, by Mr. Petrie and myself. I have traced it from Portobello nearly to Oamaru. It is never found many feet from the sea beach. The male is very sprightly, but the female is very sluggish, and invariably simulates death upon being touched. It is able to live a long time without food. I kept a female in a corked tube without food for nearly two months, and at the end of this time it appeared not to have suffered the least from its long fast.

The nests, strongly resembling those of Nemesia, though many times shallower and much smaller, are built in clay banks, and at all angles between the horizontal and the vertical, but generally at an angle vertical, or nearly so, to the earth's surface.