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Show 1879.] SPIDERS F R O M N E W Z E A L A N D . 699 triangle, on the middle of the forepart, and two large, somewhat triangular patches, one on each side, between the two anterior angular prominences, of a cream-yellow colour; the hinder part of the abdomen is of pale yellow-brown hue, mottled with blackish brown near the darker surface of the fore part. Another example was somewhat similarly marked on the abdomen, but had an altogether yellowish hue, the cephalothorax, palpi, and legs being yellow, without any markings or annulation whatever. A third example has the abdomen of a shorter form, more convex above, and the posterior conical eminences very much smaller and shorter, scarcely larger than the anterior ones. The whole of the upper surface and sides are of a dull cream-colour, with four dark reddish-brown spots in the form of a trapezium in the middle, and a few veiny lines of the same hue : also at the fore extremity is a dull reddish-brown transverse band, and a few irregular markings of the same colour on the sides; the legs and palpi are annulated. I am more than half inclined to think this example may be of a different species; but at present it will be best to leave it where it is. An adult male accompanying the above three examples is rather smaller, the abdomen much more flattened, of a uniform deep reddish black-brown, with a few obscure yellowish spots and markings on the upperside, and the posterior prominences intermediate in length and strength between those of the first and second of the females above described ; the caput is more elevated and prominent, and the cephalothorax is of a uniform dark red-brown colour. The palpi are rather long and strong ; the cubital joint is short and bent, the radial shorter but prominent behind; the digital joint is very large and of ordinary form, its convex sides are directed inwards ; and the palpal organs are rather complex and encircled by a strongish spine. The examples above described of this interesting little Spider were sent to me by Capt. F. W . Hutton, from the west coast of Otago, New Zealand. I am not satisfied with respect to the generic position here given to this Spider, which has a close affinity to Phoroncidia, Westw., as well as to Stegosoma, Cambr. Fam. THLAOSOMIDES. Genus THLAOSOMA, Cambr. THLAOSOMA ATKINSONII, sp. n. (Plate LII. fig. 7.) Adult female, length 3 lines, breadth of abdomen at the widest part 3| lines. The general form of this Spider resembles very nearly that of others of this curious genus, but it may be readily distinguished by its colours and markings as well as by the special form of the abdominal protuberances. . The fore part of the caput is upturned, ending in a subcorneal point, and bearing the four pairs of minute eyes, in the usual position. The colour of the cephalothorax is of a whitish-yellow or pale cream hue, marked on the sides with dusky yellowish brown, leaving |