518 BET. O. PICKARD-CAMBEIDGE ON [Apr. 18, a large loreal and two small superposed freno-orbitals ; 7 or 8 upper labials ; chin-shields, one anterior and 4 to 6 pairs ; no enlarged median gulars ; mesoptychial scales small. Dorsal scales minute, granular; ventral plates in 8 longitudinal rows, subequal in width, about twice as broad as long; 32 to 85 plates from the collar-fold to the prseanal region. 6 enlarged praeanal plates, one in the first row, two in the second, three in the third. One row of large brachial plates, followed by rows of smaller ones gradually merging into granular scales ; two rows of large antebrachials, the outer continuous with the brachials. 4 or 5 rows of femoral shields, 3 of tibials. 18 to 21 femoral pores on each side. Toes conspicuously serrated at the base. Caudal scales slightly oblique, upper sharply keeled. Blackish above, body and limbs with nume-rous small round white spots ; throat and belly dark leaden, the latter with ill-defined white spots ; lower surface of limbs and tail, and prseaual region pure white. Total length 495 millim. Head 35 „ Width of head 24 „ Erom end of snout to fore limb . . 49 „ „ „ vent 135 „ Pore limb 53 „ Hind limb 106 „ Tail 360 Two male specimens of this species were obtained by Mr. P. 0. Simons near Guayaquil, in Ecuador. The fact of so large and con-spicuous a Lizard having hitherto escaped zoological collectors in the vicinity of so well-explored a locality as the principal harbour of Ecuador is very remarkable. 4. On some new Species of Exotic Araneidea. By the R^v. OcTAVius Pickard-Cambridge, M.A., F.R.S., C.M.Z.S., &c. [Eeceived April 6, 1899.] (Plates XXIX. & XXX.) The twelve species of Araneidea described here belong to several families, and are from widely separated localities, — one species (each) from Bogota, Natal, aud Madagascar, two from Singapore, and seven from Ceylon. Specimens of five of those from Ceylon were sent to me many years ago by the late Mr. Gr. H. K. Thwaites, of the Eoyal Botauic Gardens, and of two by Mr. Ernest E. Green, of Dickoya, Ceylon. The Singapore spiders were sent to me by Mr. H. N. Eidiey, Superintendent of the Botanic Gardens. The Natal spider, an exceedingly fine and remarkable species of the genus Poltys C. Koch, was kindly given to me by Dr. E. N. Dimock Brown, together with some very characteristic coloured sketches
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