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Show 56b REV. O. P. CAMBRIDGE ON NEW ARANEIDEA. [June 19, reaches to the fore margin of the abdomen ; each of the other eminences has a single, less distinct, stripe of a similar colour; and on the fore half of the upperside of the abdomen is a central longitudinally brown marking which is produced at its hinder end until it meets the stripe on the third eminence; four red-brown impressed spots form a square (whose fore side is the shortest) about the middle of the upperside. The sides and underparts are yellow-brown; the spinners are short, compact, and encircled at their base by a yellow-brown corneous-looking fillet or rim. A large round area at the fore part of the underside, including the spiracular plates and the junctional pedicle, are of a coriaceous texture and bright red-brown colour. A single example of this distinct and remarkable Spider was contained in a collection made for me in Minas Geraes in 1871, by Mr. Henry Rogers. So far as I know, this is the first male of the genus yet described. The genus, indeed, which is closely allied to Stepha-nopis (Cambr.), consists at present of but three species, E. hetero-gaster, Latr., E. spinipes, Bl., and E. quinquegibbosa, all being found in Brazil. The present species cannot be confounded with either of the other two, not only differing in the number of the abdominal prominences, but in their form and colour also: these prominences are three in E. spinipes, five in E. quinquegibbosa, and seven in E. heterogaster, the last being also of a large size, while the other two are quite small. Fam. PODOPHTHALMIDES. Gen. P O D O P H T H A L M A , Capello. The examination of the examples described below long ago convinced m e that the genus Podophthalma is closely allied to Ocyale. This is contrary to the conclusion lately arrived at by M . Simon (Bull. Soc. Zool. de France, 1876, seance du 7 Juillet), who considers Podophthalma to belong to the family Oxyopides. The form of the cephalothorax and maxillae, as well as the position of the eyes, are totally different from those of Oxyopes; there is, however, perhaps some affinity between them ; at any rate there is a certain resemblance in the general form of Podophthalma and Oxyopes ; but even in this respect the resemblance between the former and Ocyale is still more close, while in the form of the cephalothorax there is a very striking similarity ; and if in Ocyale the lateral eyes of the anterior row were separated a little more from each other, and seated at the prominent fore corners of the clypeus, this would make the eye-position exceedingly like that of Podophthalma. The species of Ocyale used to be placed in the genus Dolomedes. All arachnologists, 1 believe, now separate them from the latter genus, while still retaining them, next to it, in the family Lycosides. I have myself long since felt the necessity for constituting a family Podophthalmides for Podophthalma and one or two other (as I then conceived) allied genera, forming a passage from the Thomisides to the Lycosides through Ocyale. I have recently found reason to doubt the family affinity between |