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Show 124 REV. O. P. CAMBRIDGE ON SOME NEW [Jan. 21, of this Spider, I have received numerous examples of both sexes in the adult state from Ceylon, kindly sent me by Mr. Nietner, as well as by Mr. Thwaites. The adult male resembles the female in general characters, colours, and markings, but is rather smaller ; the caput is also rather more produced ; and the abdominal spines are longer in proportion than those of the female, in fact exceeding in length that of the abdomen itself, and presenting a very formidable appearance, an absolute bar, one would imagine, to any chance of ever being swallowed by a bird. The palpi of the male are dark brownish black ; the radial is rather longer and stronger than the cubital joint, and is broadest at its fore extremity, where it has a marginal row of bristly hairs; the digital joint is moderate in size, and of an oval shape ; the palpal organs are well developed and encircled with a slender filiform spine. PHORONCIDIA BREVISPINOSA, sp. n. (Plate XIV. fig. 7i) Female adult, length 1 line. This species nearly resembles P. thwaitesii (Cambr.) in its general form and in the number and position of the spines on the abdomen; but it may be distinguished easily by its smaller size, the shortness of the spines, and the less prominent ocular portion of the caput. The cephalothorax is of a blackish-brown colour: the legs pale orange-yellow, short and rather strong, their relative length being 1, 4, 2, 3 ; the difference between 1 and 4 is very slight; and they are furnished sparingly with bristly hairs. The palpi are also short, similar in colour to the cephalothorax, and apparently without any terminal claw. The eyes do not differ greatly in size ; but their position is the same as that of P. thwaitesii, four centrals forming a square ; and on either side the laterals are placed very obliquely, almost horizontally in fact, and forming with the fore centrals nearest to them a short curved row on each side. The colour of the falces, maxillee, and labium is dull yellowish brown, and that of the sternum nearly black. The abdomen is of a dull orange-yellow colour, with a few small indistinct whitish patches; its surface is thinly but regularly, and (on the upperside at least) somewhat symmetrically, covered with round impressed dots or punctures; there are also a few small blackish spots on the upper part, hinder part, and sides; and the posterior spines are clouded with black. The spines, nine in number, are very short, and, in fact, of a sharp conical form ; but their position is exactly the same as in the spines before alluded to in P. thwaitesii. A single adult female was received from Mr. Thwaites in 1871. PHORONCIDIA SEPTEMACULEATA, sp. n. (Plate XIV. fig. 8.) Female adult, length 1| line. The excessive elevation of the abdomen, whose height is double its length, will serve readily to distinguish this species, independently of the very different nature and the number of the spines: |