FEOM DUTCH XEW GUINEA. 519 



The females are rather more highly coloured than the males 

 and the legs more distinctly ringed, but so closely resemble 

 them in structure and general coloration that I have supposed 

 them to be of the same species, though unless captured together 

 the matter is always open to doubt. 



In the males the tooth on the inner falx-sheath is raised above 

 the lower end of a straight base, which in the females has a 

 point at the other end also, enough to make it really fissidentated ; 

 but these two and the following Z. syrinx with no teeth at all 

 are all so much alike, and so distinctly resemble Zenodorus 

 d'urvillei, the type species, that I am unable to separate them 

 from that genus. 



Zenodorus syrinx, sp, n. (Text-fig. 8.) 



1 male and 1 female. (Types of the species.) 



Male without teeth on falx-sheath. 



Female without teeth on inner margin of falx-sheath. 



Male. Cephalothorax black-brown on the eye-space, bright 

 red -brown just behind the same, behind this again dark brown 

 to the rear margin ; scattered over this at intervals are lanceo- 

 late pearly scales, more thickly at the sides and on the clypeiis, 

 where some of them are lengthened into flat bristles. On the 

 front margin of the clypeus is a flat raised rim. The mandibles 

 are black-brown with transverse corrugations of green opalescence, 

 and, except for a few flat bristles at the inner edge of the base, 

 quite bare. 



The base of the falx is as thick through as it is broad trans- 

 versely, but tapers towards the anterior end. A transverse 

 section at the base would be almost square. The median part of 

 the inner margin is hollowed out, thus leaving an oval opening 

 between the two falces. 



In the specimen before me there is no tooth on the lower 

 margin of the falx-sheath, and none visible in the thick fringe 

 on the outer. 



The lip and maxillae are nearly black-brown, with a narrow 

 yellow-brown edging and dark grey fringes. The sternum and 

 coxfe are dark orange-yellow, with fine upstanding yellow-brown 

 hair. 



The femur and patella of the front pair of legs are dark 

 orange ; the tibia and metatarsus black-brown with a thick black 

 fringe of long bristles on the under side, those on the metatarsus 

 being the shorter. The tarsi quite pale yellow. The metatarsus 

 of the second pair is pale, otherwise the same colour as the first ; 

 the third and fourth pairs are paler yellow-brown. 



The abdomen on the upper side is dark greyish-brown, with 

 short upstanding brown hair over the basal area ; following this 

 is a broad field of pearly-grey scales, and along the sides patches 

 of the same as far as the spinnerets ; the under side is pale 

 yellowish-grey. 



