OCR Text |
Show 1877.] REV. o. p. CAMBRIDGE ON N E W ARANEIDEA. 565 interval of double the extent of that between the eyes of the first and their colour is black, with a narrow orange margin ; the laterals of the hinder row are placed rather behind, and near the summit of the eminence, and are divided from those of the second row by an interval equal to that between the second and first rows; the two centrals of the hinder row are seated behind the bases of the eminences, and are considerably further apart than each is from the lateral, of the same row, on its side. The lateral eyes of the three rows form on each side a very nearly straight line; and its length is rather greater than the height of the clypeus. The legs are strong; those of the first and second pairs are much the longest, the difference in their length being very slight; the first are perhaps a little the longest, and the third pair shortest. They are of a yellow colour, clouded with orange and brown in parts, and the two basal joints are bright red-brown. The femora, tibiee, and metatarsi of the first two pairs are furnished with spines; those on the femora are in front; those on the other two joints are underneath. Each tarsus terminates with two curved claws, furnished beneath the basal portion with, apparently, no more than 1-3 denticulations. The palpi are short and rather strong ; the radial joint is shorter than the cubital, but less stout, and has its fore extremity on the outer side produced into a furcate projection ; the upper prong forms a short, curved, pointed, claw-like apophysis ; the under one adheres close to the outer side of the digital joint, and is of a flattened form, pointed at the end, and much longer and larger than the upper prong ; the digital joint is large, of a broad oval form, of a brownish yellow colour, the rest of the palpus being yellow ; the palpal organs are simple in structure, and apparently inscribed by a filiform spine. The falces are short, strong, subconical, perpendicular, and of a deep yellowish-red colour. The maxillee are moderate in length and strength, straight, but rather inclined towards the labium, and a little the broadest at their extremities, their colour being reddish yellow-brown, palest at the extremities. The labium is of the same colour as the maxillae; its breadth and height are about equal; but its base is broader than its apex, which is rounded. The sternum is heart-shaped, of an orange-yellow colour, margined with dark red-brown. The abdomen is broadest and most convex at the hinder extremity; the hinder part, sides, and underside are rugulose; and the whole surface is covered with small, red-brown, shining tubercles ; on the upperside are two long, slightly tapering, strongly divergent prominences ; and at the middle of the upper part of the hinder extremity is another, shorter and more sharply pointed; a little lower down on each side of the hinder extremity is another still shorter, or simply conical eminence : the upperside of the abdomen, including the eminences, is of an orange-yellow colour; the two anterior eminences have each two longitudinal red-brown stripes, the foremost of which |